Open dataset 1.0

One identity for every elementary flow.

Linked back to each life cycle inventory database that names it differently. Open data, open code.

8,160 flow objects 97,818 elementary flows 6 source lists

For example

Carbon Dioxide (fossil)

CAS 124-38-9InChIKey CURLTUGMZLYLDI-UHFFFAOYSA-NFormula CO2Molecular mass 44.009 g/molIUPAC name dioxidocarbonSMILES O=C=O

Named in 6 source lists, 39 source rows in all

ecoinvent 3.12: Carbon dioxide, fossil
EF 3.1: carbon dioxide (fossil)
bafu 2026-v1: Carbon dioxide, fossil

View the flow object → Why fossil and biogenic stay apart →

Hexafluoroethane

CAS 76-16-4InChIKey WMIYKQLTONQJES-UHFFFAOYSA-NFormula C2F6Molecular mass 138.01 g/molIUPAC name HexafluoroethaneSMILES FC(F)(F)C(F)(F)F

Named in 6 source lists, 35 source rows in all

ecoinvent 3.12: Hexafluoroethane
EF 3.1: HFC-116
bafu 2026-v1: Ethane, hexafluoro-, HFC-116

View the flow object → How EF's two rows were merged →

Paraquat

CAS 4685-14-7InChIKey INFDPOAKFNIJBF-UHFFFAOYSA-NMolecular mass 186.258 g/molIUPAC name 1,1'-dimethyl-[4,4'-bipyridin]-1,1'-diiumSMILES C[n+]1ccc(-c2cc[n+](C)cc2)cc1

Named in 6 source lists, 33 source rows in all

ecoinvent 3.12: Paraquat
EF 3.1: 1,1'-dimethyl-4,4'-bipyridinium
bafu 2026-v1: Paraquat

View the flow object → Why EF's paraquat was renamed →