2-methyl-2-butene
fe0acd60-3ddc-11dd-a30c-0050c2490048
Identity
- Substance
- fo-265330df8b1f130e Neutral molecule
- Source
- EF 3.1
- Unit
- kg
- Context
- Environmental → Air → Unknown
- CAS
- 513-35-9
- EC
- 208-156-3
Context
- Dimension
- Environmental
- Media
- Air
- Strata
- Unknown
Alternative labels
13- (CH3)2C=CHCH3
- 1,1,2-Trimethylethylene
- 2-Methylbutene-2
- 2-methylbut-2-ene
- 3-Methyl-2-butene
- Amylene
- Trimethylethylene
- beta-Isoamylene
- n-Amylene
- 2-Butene, 2-methyl-
- 2-Methyl-2-butylene
- Trimethylethene
- β-Isoamylene
Source lists
6| List | Version | Source flow | Name there | Why this flow |
|---|---|---|---|---|
| EF | 3.1 | fe0acd60-3ddc-11dd-a30c-0050c2490048 | 2-methyl-2-butene | The consensus list is built from this one, so this row is the flow itself rather than something matched to it. |
| agribalyse | 3.2 | f292cec7-471d-5a69-a417-6489e2b1dd01 | 2-Butene, 2-methyl- | The CAS numbers are the same (513-35-9); both name the same compartment. |
| bafu | 2026-v1 | a18005c4-68b9-575c-8a07-88dd6aeab46b | 2-Butene, 2-methyl- | The CAS numbers are the same (513-35-9); both name the same compartment. |
| ecoinvent | 3.12 | 4e44630f-4197-4f05-809f-0fef07fba7d3 | 2-Methyl-2-butene | The CAS numbers are the same (513-35-9); both name the same compartment. |
| ecoinvent | 3.8 | 4e44630f-4197-4f05-809f-0fef07fba7d3 | 2-Methyl-2-butene | The CAS numbers are the same (513-35-9); both name the same compartment. |
| stepwise | 2006-1.09 | 67c492f4-cc36-5c67-89fb-015835631f1e | 2-Butene, 2-methyl- | The CAS numbers are the same (513-35-9); both name the same compartment. |
Concept associations
6| Source list | Source flow | Name there | Compartment there | Match | Conversion |
|---|---|---|---|---|---|
| EF 3.1 | fe0acd60-3ddc-11dd-a30c-0050c2490048 | 2-methyl-2-butene | Emissions/Emissions to air/Emissions to air, unspecified | exactMatch | — |
| ecoinvent 3.12 | 4e44630f-4197-4f05-809f-0fef07fba7d3 | 2-Methyl-2-butene | air / unspecified | closeMatch | — |
| ecoinvent 3.8 | 4e44630f-4197-4f05-809f-0fef07fba7d3 | 2-Methyl-2-butene | air / unspecified | closeMatch | — |
| bafu 2026-v1 | a18005c4-68b9-575c-8a07-88dd6aeab46b | 2-Butene, 2-methyl- | emissions to air / unspecified | closeMatch | — |
| stepwise 2006-1.09 | 67c492f4-cc36-5c67-89fb-015835631f1e | 2-Butene, 2-methyl- | Air / (unspecified) | closeMatch | — |
| agribalyse 3.2 | f292cec7-471d-5a69-a417-6489e2b1dd01 | 2-Butene, 2-methyl- | Emissions to air | closeMatch | — |
Characterisation factors
24- consensus-flow-list 7
- European Commission — JRC 5
- GreenDelta 5
- ecoinvent Centre 5
- 2.-0 LCA consultants 2
Every implementation that says anything about this flow. Published as is what this list did with the row: where more than one implementation states a number and they agree it publishes it as agreed; where only one speaks, as sole; where they disagree it publishes nothing and asks.
| Method | Implementation | Category | Place | Factor | Published as |
|---|---|---|---|---|---|
| EF 3.1 | European Commission — JRC | Ecotoxicity, freshwater | — | 0.002863 | — |
| EF 3.1 | ecoinvent Centre | Ecotoxicity, freshwater | — | 0.002863 | — |
| EF 3.1 | GreenDelta | Ecotoxicity, freshwater | — | 0.002863 | — |
| EF 3.1 | consensus-flow-list | Ecotoxicity, freshwater | — | 0.002863 | agreed |
| EF 3.1 | European Commission — JRC | Ecotoxicity, freshwater_organics | — | 0.002863 | — |
| EF 3.1 | ecoinvent Centre | Ecotoxicity, freshwater_organics | — | 0.002863 | — |
| EF 3.1 | GreenDelta | Ecotoxicity, freshwater_organics | — | 0.002863 | — |
| EF 3.1 | consensus-flow-list | Ecotoxicity, freshwater_organics | — | 0.002863 | agreed |
| EF 3.1 | European Commission — JRC | Human toxicity, non-cancer | — | 1.9132e-09 | — |
| EF 3.1 | ecoinvent Centre | Human toxicity, non-cancer | — | 1.9132e-09 | — |
| EF 3.1 | GreenDelta | Human toxicity, non-cancer | — | 1.9132e-09 | — |
| EF 3.1 | consensus-flow-list | Human toxicity, non-cancer | — | 1.9132e-09 | agreed |
| EF 3.1 | European Commission — JRC | Human toxicity, non-cancer_organics | — | 1.9132e-09 | — |
| EF 3.1 | ecoinvent Centre | Human toxicity, non-cancer_organics | — | 1.9132e-09 | — |
| EF 3.1 | GreenDelta | Human toxicity, non-cancer_organics | — | 1.9132e-09 | — |
| EF 3.1 | consensus-flow-list | Human toxicity, non-cancer_organics | — | 1.9132e-09 | agreed |
| EF 3.1 | European Commission — JRC | Photochemical ozone formation - human health | — | 1.42 | — |
| EF 3.1 | ecoinvent Centre | Photochemical ozone formation - human health | — | 1.42 | — |
| EF 3.1 | GreenDelta | Photochemical ozone formation - human health | — | 1.42 | — |
| EF 3.1 | consensus-flow-list | Photochemical ozone formation - human health | — | 1.42 | agreed |
| Stepwise 2006 | 2.-0 LCA consultants | Photochemical ozone, vegetat. | — | 1,159 | — |
| Stepwise 2006 | consensus-flow-list | Photochemical ozone, vegetat. | — | 1,159 | sole |
| Stepwise 2006 | 2.-0 LCA consultants | Respiratory organics | — | 0.1444 | — |
| Stepwise 2006 | consensus-flow-list | Respiratory organics | — | 0.1444 | sole |
History
The change log and the PROV-O trail (2 consensus changes)
These are the heaviest sections of this page and the least often read, so the page does not pay for them until you ask.
Full record
Flow JSON
{
"altLabel": [
{
"@value": "(CH3)2C=CHCH3",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "1,1,2-Trimethylethylene",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "2-Methylbutene-2",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "2-methylbut-2-ene",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "3-Methyl-2-butene",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "Amylene",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "Trimethylethylene",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "beta-Isoamylene",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "n-Amylene",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "2-Butene, 2-methyl-",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "consensus_match",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CAS:513-35-9",
"https://commonchemistry.cas.org/detail?cas_rn=513-35-9"
],
"prov:wasDerivedFrom": "common chemistry CAS lookup"
}
},
{
"@value": "2-Methyl-2-butylene",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "consensus_match",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CAS:513-35-9",
"https://commonchemistry.cas.org/detail?cas_rn=513-35-9"
],
"prov:wasDerivedFrom": "common chemistry CAS lookup"
}
},
{
"@value": "Trimethylethene",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "consensus_match",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CAS:513-35-9",
"https://commonchemistry.cas.org/detail?cas_rn=513-35-9"
],
"prov:wasDerivedFrom": "common chemistry CAS lookup"
}
},
{
"@value": "β-Isoamylene",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "consensus_match",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CAS:513-35-9",
"https://commonchemistry.cas.org/detail?cas_rn=513-35-9"
],
"prov:wasDerivedFrom": "common chemistry CAS lookup"
}
}
],
"properties": {
"https://w3id.org/chemrof/molecular_formula": {
"@id": "https://w3id.org/chemrof/molecular_formula",
"@value": [
"C5H10"
],
"attested_by": {
"C5H10": [
"enrich_references.chebi_semantic",
"enrich_references.pubchem_semantic",
"rdkit_post_consensus"
]
},
"rdfs:label": "Molecular formula",
"provenance": [
{
"prov:wasGeneratedBy": "enrich_references.chebi_semantic",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.basic_property_values.generalized_empirical_formula"
},
{
"prov:wasGeneratedBy": "enrich_references.pubchem_semantic",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:10553"
],
"prov:wasDerivedFrom": "pubchem.props.Molecular Formula"
},
{
"prov:wasGeneratedBy": "rdkit_post_consensus",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CC=C(C)C"
]
}
]
},
"https://w3id.org/chemrof/smiles_string": {
"@id": "https://w3id.org/chemrof/smiles_string",
"rdfs:label": "SMILES",
"@value": [
"CC=C(C)C"
],
"provenance": [
{
"prov:wasGeneratedBy": "opsin_iupac",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"2-methyl-2-butene"
]
},
{
"prov:wasGeneratedBy": "rdkit_post_consensus",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CC=C(C)C"
]
}
],
"attested_by": {
"CC=C(C)C": [
"opsin_iupac",
"rdkit_post_consensus"
]
}
},
"https://w3id.org/chemrof/inchi2d_string": {
"@id": "https://w3id.org/chemrof/inchi2d_string",
"rdfs:label": "InChI",
"@value": [
"InChI=1S/C5H10/c1-4-5(2)3/h4H,1-3H3"
],
"provenance": [
{
"prov:wasGeneratedBy": "opsin_iupac",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"2-methyl-2-butene"
]
},
{
"prov:wasGeneratedBy": "rdkit_post_consensus",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CC=C(C)C"
]
}
],
"attested_by": {
"InChI=1S/C5H10/c1-4-5(2)3/h4H,1-3H3": [
"opsin_iupac",
"rdkit_post_consensus"
]
}
},
"https://w3id.org/chemrof/inchi2d_key_string": {
"@id": "https://w3id.org/chemrof/inchi2d_key_string",
"@value": [
"BKOOMYPCSUNDGP-UHFFFAOYSA-N"
],
"attested_by": {
"BKOOMYPCSUNDGP-UHFFFAOYSA-N": [
"enrich_references.chebi_semantic",
"enrich_references.pubchem_semantic",
"rdkit_post_consensus"
]
},
"rdfs:label": "InChIKey",
"provenance": [
{
"prov:wasGeneratedBy": "enrich_references.chebi_semantic",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.basic_property_values.inchi_key_string"
},
{
"prov:wasGeneratedBy": "enrich_references.pubchem_semantic",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:10553"
],
"prov:wasDerivedFrom": "pubchem.props.InChIKey"
},
{
"prov:wasGeneratedBy": "rdkit_post_consensus",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CC=C(C)C"
]
}
]
},
"https://w3id.org/chemrof/molecular_mass": {
"@id": "https://w3id.org/chemrof/molecular_mass",
"@value": [
70.135
],
"attested_by": {
"70.135": [
"enrich_references.chebi_semantic",
"rdkit_post_consensus"
]
},
"rdfs:label": "Molecular mass",
"http://qudt.org/schema/qudt/hasUnit": "https://vocab.brightway.one/units/unit/GM-PER-MOL",
"provenance": [
{
"prov:wasGeneratedBy": "enrich_references.chebi_semantic",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.basic_property_values.mass"
},
{
"prov:wasGeneratedBy": "rdkit_post_consensus",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CC=C(C)C"
]
}
]
},
"https://w3id.org/chemrof/monoisotopic_mass": {
"@id": "https://w3id.org/chemrof/monoisotopic_mass",
"@value": [
70.07825
],
"attested_by": {
"70.07825": [
"enrich_references.chebi_semantic",
"rdkit_post_consensus"
]
},
"rdfs:label": "Monoisotopic mass",
"http://qudt.org/schema/qudt/hasUnit": "https://vocab.brightway.one/units/unit/GM-PER-MOL",
"provenance": [
{
"prov:wasGeneratedBy": "enrich_references.chebi_semantic",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.basic_property_values.monoisotopic_mass"
},
{
"prov:wasGeneratedBy": "rdkit_post_consensus",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CC=C(C)C"
]
}
]
},
"https://w3id.org/chemrof/elemental_charge": {
"@id": "https://w3id.org/chemrof/elemental_charge",
"@value": [
0
],
"attested_by": {
"0": [
"enrich_references.chebi_semantic"
]
},
"rdfs:label": "Elemental charge",
"http://qudt.org/schema/qudt/hasUnit": "https://vocab.brightway.one/units/unit/NUM",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_semantic",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.basic_property_values.charge"
}
},
"https://w3id.org/chemrof/IUPAC_name": {
"@id": "https://w3id.org/chemrof/IUPAC_name",
"rdfs:label": "IUPAC name",
"@value": [
"2-methyl-2-butene"
],
"provenance": {
"prov:wasGeneratedBy": "opsin_iupac",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"2-methyl-2-butene"
]
},
"attested_by": {
"2-methyl-2-butene": [
"opsin_iupac"
]
}
}
},
"references": [
{
"@id": "http://jglobal.jst.go.jp/en/redirect?Nikkaji_No=J6.280D",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:10553;CAS:513-35-9"
],
"prov:wasDerivedFrom": "pubchem.identifiers[513-35-9]"
}
},
{
"@id": "https://chem.echa.europa.eu/100.007.416",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:10553;CAS:513-35-9"
],
"prov:wasDerivedFrom": "pubchem.identifiers[513-35-9]"
}
},
{
"@id": "https://commonchemistry.cas.org/detail?cas_rn=28265-98-7",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:10553;CAS:513-35-9"
],
"prov:wasDerivedFrom": "pubchem.identifiers[513-35-9]"
}
},
{
"@id": "https://commonchemistry.cas.org/detail?cas_rn=513-35-9",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
},
{
"@id": "https://comptox.epa.gov/dashboard/DTXSID8027165",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:10553;CAS:513-35-9"
],
"prov:wasDerivedFrom": "pubchem.identifiers[513-35-9]"
}
},
{
"@id": "https://dtp.cancer.gov/dtpstandard/servlet/dwindex?searchtype=NSC&outputformat=html&searchlist=74118",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:10553;CAS:513-35-9"
],
"prov:wasDerivedFrom": "pubchem.identifiers[513-35-9]"
}
},
{
"@id": "https://en.wikipedia.org/wiki/2-Methyl-2-butene",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:10553;CAS:513-35-9"
],
"prov:wasDerivedFrom": "pubchem.identifiers[513-35-9]"
}
},
{
"@id": "https://gsrs.ncats.nih.gov/ginas/app/beta/substances/HR68LQ4T3X",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:10553;CAS:513-35-9"
],
"prov:wasDerivedFrom": "pubchem.identifiers[513-35-9]"
}
},
{
"@id": "https://pubchem.ncbi.nlm.nih.gov/compound/10553",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_compound",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:10553;CAS:513-35-9"
],
"prov:wasDerivedFrom": "pubchem.by_cas[513-35-9]"
}
},
{
"@id": "https://pubchem.ncbi.nlm.nih.gov/erg/#1108",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:10553;CAS:513-35-9"
],
"prov:wasDerivedFrom": "pubchem.identifiers[513-35-9]"
}
},
{
"@id": "https://pubchem.ncbi.nlm.nih.gov/erg/#2460",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:10553;CAS:513-35-9"
],
"prov:wasDerivedFrom": "pubchem.identifiers[513-35-9]"
}
},
{
"@id": "https://pubmed.ncbi.nlm.nih.gov/21524786",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
},
{
"@id": "https://pubmed.ncbi.nlm.nih.gov/25822578",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
},
{
"@id": "https://pubmed.ncbi.nlm.nih.gov/26277137",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
},
{
"@id": "https://pubmed.ncbi.nlm.nih.gov/28447883",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
},
{
"@id": "https://pubmed.ncbi.nlm.nih.gov/32240587",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
},
{
"@id": "https://pubmed.ncbi.nlm.nih.gov/33241402",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
},
{
"@id": "https://pubmed.ncbi.nlm.nih.gov/33320690",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
},
{
"@id": "https://pubmed.ncbi.nlm.nih.gov/34023922",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
},
{
"@id": "https://pubmed.ncbi.nlm.nih.gov/34854691",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
},
{
"@id": "https://pubmed.ncbi.nlm.nih.gov/37040176",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
},
{
"@id": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:28798",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:10553;CAS:513-35-9"
],
"prov:wasDerivedFrom": "pubchem.identifiers[513-35-9]"
}
},
{
"@id": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:77916",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_id_link",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.id"
}
},
{
"@id": "https://www.wikidata.org/wiki/Q2187069",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:10553;CAS:513-35-9"
],
"prov:wasDerivedFrom": "pubchem.identifiers[513-35-9]"
}
},
{
"@id": "reaxys:1361353",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
}
],
"prefLabel": [
{
"@value": "2-methyl-2-butene",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "bootstrap_labels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"EF 3.1"
],
"prov:wasDerivedFrom": "legacy name field"
}
}
],
"@type": [
"https://w3id.org/chemrof/NeutralMolecule"
],
"http://www.w3.org/2004/02/skos/core#definition": [
{
"@value": "An alkene that is ethylene in which three of the hydrogens are replaced by methyl groups.",
"@language": "en",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_definition",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_77916"
],
"prov:wasDerivedFrom": "chebi.definition"
}
}
],
"uuid": "fe0acd60-3ddc-11dd-a30c-0050c2490048",
"identifier": "fe0acd60-3ddc-11dd-a30c-0050c2490048",
"source": "EF 3.1",
"cas_numbers": [
"513-35-9"
],
"ec_numbers": [
"208-156-3"
],
"context": {
"dimension": "Environmental",
"media": "Air",
"strata": "Unknown"
},
"synonyms": [],
"lcia_methods": [
{
"method_uuid": "05316e7a-b254-4bea-9cf0-6bf33eb5c630",
"name": "Ecotoxicity, freshwater",
"methodology": "Environmental Footprint",
"impact_category": "Aquatic eco-toxicity",
"impact_indicator": "Comparative Toxic Unit for ecosystems (CTUe) ",
"characterization_factor": 0.0028631
},
{
"method_uuid": "7cfdcfcf-b222-4b26-888a-a55f9fbf7ac8",
"name": "Human toxicity, non-cancer",
"methodology": "Environmental Footprint",
"impact_category": "Non-cancer human health effects",
"impact_indicator": "Comparative Toxic Unit for human (CTUh)",
"characterization_factor": 1.9132e-9
},
{
"method_uuid": "8c3141e9-1f15-43b5-bff2-182e49893a46",
"name": "Human toxicity, non-cancer_organics",
"methodology": "Environmental Footprint",
"impact_category": "Non-cancer human health effects",
"impact_indicator": "Comparative Toxic Unit for human (CTUh)",
"characterization_factor": 1.9132e-9
},
{
"method_uuid": "b5c610fe-def3-11e6-bf01-fe55135034f3",
"name": "Photochemical ozone formation - human health",
"methodology": "Environmental Footprint",
"impact_category": "Photochemical ozone creation",
"impact_indicator": "Tropospheric ozone concentration increase",
"characterization_factor": 1.42
},
{
"method_uuid": "fd530f00-9325-424a-92ef-aaac67922fd9",
"name": "Ecotoxicity, freshwater_organics",
"methodology": "Environmental Footprint",
"impact_category": "Aquatic eco-toxicity",
"impact_indicator": "Comparative Toxic Unit for ecosystems (CTUe) ",
"characterization_factor": 0.0028631
}
],
"unit": "kg",
"input_datasets": [
"EF 3.1"
],
"context_iri": "https://vocab.brightway.one/flow-contexts/envi-air-unkn",
"unit_iri": "https://vocab.brightway.one/units/unit/KiloGM",
"flow_object_id": "fo-265330df8b1f130e",
"concept_associations": [
{
"@type": "xkos:ConceptAssociation",
"xkos:sourceConcept": {
"@id": "https://vocab.brightway.one/ef/3.1/flow/fe0acd60-3ddc-11dd-a30c-0050c2490048",
"skos:prefLabel": "2-methyl-2-butene",
"context": "Emissions/Emissions to air/Emissions to air, unspecified",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/KiloGM"
},
"skos:exactMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-a30c-0050c2490048"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-a30c-0050c2490048"
},
"provenance": {
"prov:wasGeneratedBy": "build_concept_associations",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"https://eplca.jrc.ec.europa.eu/permalink/EF3_1/EF-v3.1.zip"
]
}
},
{
"@type": "xkos:ConceptAssociation",
"xkos:sourceConcept": {
"@id": "https://vocab.brightway.one/ecoinvent/3.12/flow/4e44630f-4197-4f05-809f-0fef07fba7d3",
"skos:prefLabel": "2-Methyl-2-butene",
"context": "air / unspecified",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/KiloGM"
},
"skos:closeMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-a30c-0050c2490048"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-a30c-0050c2490048"
},
"provenance": {
"prov:wasGeneratedBy": "merge_ecoinvent",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"ecoinvent:3.12:4e44630f-4197-4f05-809f-0fef07fba7d3",
"2-Methyl-2-butene",
"",
"algorithm.lookup_order=cas>ec>label",
"algorithm.basis=cas:513-35-9",
"algorithm.flow_object_candidates=1",
"algorithm.elementary_candidates=13",
"algorithm.selector_reason=exact-context-iri-match",
"algorithm.score_rule=exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
],
"prov:wasDerivedFrom": "algorithmic_fallback:lookup_order(cas>ec>label);basis(cas:513-35-9);flow_object_candidates(1);elementary_candidates(13);selector(exact-context-iri-match);exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
}
},
{
"@type": "xkos:ConceptAssociation",
"xkos:sourceConcept": {
"@id": "https://vocab.brightway.one/ecoinvent/3.8/flow/4e44630f-4197-4f05-809f-0fef07fba7d3",
"skos:prefLabel": "2-Methyl-2-butene",
"context": "air / unspecified",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/KiloGM"
},
"skos:closeMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-a30c-0050c2490048"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-a30c-0050c2490048"
},
"provenance": {
"prov:wasGeneratedBy": "merge_ecoinvent",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"ecoinvent:3.8:4e44630f-4197-4f05-809f-0fef07fba7d3",
"2-Methyl-2-butene",
"",
"algorithm.lookup_order=cas>ec>label",
"algorithm.basis=cas:513-35-9",
"algorithm.flow_object_candidates=1",
"algorithm.elementary_candidates=14",
"algorithm.selector_reason=exact-context-iri-match",
"algorithm.score_rule=exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
],
"prov:wasDerivedFrom": "algorithmic_fallback:lookup_order(cas>ec>label);basis(cas:513-35-9);flow_object_candidates(1);elementary_candidates(14);selector(exact-context-iri-match);exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
}
},
{
"@type": "xkos:ConceptAssociation",
"xkos:sourceConcept": {
"@id": "https://vocab.brightway.one/bafu/2026-v1/flow/a18005c4-68b9-575c-8a07-88dd6aeab46b",
"skos:prefLabel": "2-Butene, 2-methyl-",
"context": "emissions to air / unspecified",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/KiloGM"
},
"skos:closeMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-a30c-0050c2490048"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-a30c-0050c2490048"
},
"provenance": {
"prov:wasGeneratedBy": "merge_bafu",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"bafu:2026-v1:a18005c4-68b9-575c-8a07-88dd6aeab46b",
"2-Butene, 2-methyl-",
"",
"algorithm.lookup_order=cas>ec>label",
"algorithm.basis=cas:513-35-9",
"algorithm.flow_object_candidates=1",
"algorithm.elementary_candidates=14",
"algorithm.selector_reason=exact-context-iri-match",
"algorithm.score_rule=exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
],
"prov:wasDerivedFrom": "algorithmic_fallback:lookup_order(cas>ec>label);basis(cas:513-35-9);flow_object_candidates(1);elementary_candidates(14);selector(exact-context-iri-match);exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
}
},
{
"@type": "xkos:ConceptAssociation",
"xkos:sourceConcept": {
"@id": "https://vocab.brightway.one/stepwise/2006-1.09/flow/67c492f4-cc36-5c67-89fb-015835631f1e",
"skos:prefLabel": "2-Butene, 2-methyl-",
"context": "Air / (unspecified)",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/KiloGM"
},
"skos:closeMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-a30c-0050c2490048"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-a30c-0050c2490048"
},
"provenance": {
"prov:wasGeneratedBy": "merge_stepwise",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"stepwise:2006-1.09:67c492f4-cc36-5c67-89fb-015835631f1e",
"2-Butene, 2-methyl-",
"",
"algorithm.lookup_order=cas>ec>label",
"algorithm.basis=cas:513-35-9",
"algorithm.flow_object_candidates=1",
"algorithm.elementary_candidates=15",
"algorithm.selector_reason=exact-context-iri-match",
"algorithm.score_rule=exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
],
"prov:wasDerivedFrom": "algorithmic_fallback:lookup_order(cas>ec>label);basis(cas:513-35-9);flow_object_candidates(1);elementary_candidates(15);selector(exact-context-iri-match);exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
}
},
{
"@type": "xkos:ConceptAssociation",
"xkos:sourceConcept": {
"@id": "https://vocab.brightway.one/agribalyse/3.2/flow/f292cec7-471d-5a69-a417-6489e2b1dd01",
"skos:prefLabel": "2-Butene, 2-methyl-",
"context": "Emissions to air",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/KiloGM"
},
"skos:closeMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-a30c-0050c2490048"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/fe0acd60-3ddc-11dd-a30c-0050c2490048"
},
"provenance": {
"prov:wasGeneratedBy": "merge_agribalyse",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"agribalyse:3.2:f292cec7-471d-5a69-a417-6489e2b1dd01",
"2-Butene, 2-methyl-",
"",
"algorithm.lookup_order=cas>ec>label",
"algorithm.basis=cas:513-35-9",
"algorithm.flow_object_candidates=1",
"algorithm.elementary_candidates=15",
"algorithm.selector_reason=exact-context-iri-match",
"algorithm.score_rule=exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
],
"prov:wasDerivedFrom": "algorithmic_fallback:lookup_order(cas>ec>label);basis(cas:513-35-9);flow_object_candidates(1);elementary_candidates(15);selector(exact-context-iri-match);exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
}
}
],
"_sources": {
"prefLabel": "bootstrap_labels",
"name": "bootstrap_labels",
"synonyms": "bootstrap_labels",
"context": "default_context_mapping",
"context_iri": "default_context_mapping",
"unit_iri": "unit_normalization",
"properties": "normalise_property_values",
"skos_definition": "enrich_references",
"references": "enrich_references",
"altLabel": "strip_catalogue_altlabels",
"cas_match_labels": "consensus_match",
"concept_associations": "carry_associations_onto_flows",
"types": "link_flows_to_their_substance"
},
"cas_match_labels": {
"513-35-9": "exactMatch"
},
"_transformed": true,
"_provided": {
"name": "2-methyl-2-butene",
"synonyms": [
".beta.-Isoamylene",
"1,1,2-Trimethylethylene",
"2-Butene, 2-methyl-",
"2-Methylbut-2-ene",
"3-Methyl-2-butene",
"A07603500",
"AB1003301",
"AC1L1VG1",
"AMYLENE",
"Amylene",
"Amylene (VAN)",
"Ethylene, trimethyl-",
"LTBB002026",
"Methyl butene",
"P0067",
"Trimethylethylene",
"b-isoamylene",
"beta-Isoamylene",
"n-Amylene",
"|A-Isoamylene"
],
"context": [
"Emissions",
"Emissions to air",
"Emissions to air, unspecified"
],
"cas_numbers": [
"513-35-9"
],
"ec_numbers": [
"208-156-3"
],
"unit": "kg"
}
}Something wrong here?
A flow can be wrong in three ways, and they are decided differently. Pick the one that matches what you are looking at.
- A row from my list should not reach this flow
- This flow is not that chemical
- The compartment or the unit is wrong
- One of these characterisation factors cannot be this substance's
You do not need to run a build or clone anything. Name the row and say what your evidence is; the measurement is done for you. How contributing works