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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to soil microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

Additional information

One long-term study conducted with the earthworm Eisenia fetida, according to the OECD Guideline 222, is available for the subcategory 2 member Fatty acids, C18-unsaturated, dimers (CAS No. 61788-89-4). As no effects occurred in the this study up to the highest test concentration of 1000 mg/kg soil dw, the members of the subcategory 2 predominantly oligomers, are considered as not harmful to terrestrial organisms and no further testing is needed. It is assumed, that due to the lack of effects in long-term toxicity tests with soil invertebrates as well as in a long-term toxicity test with fish within the solubility limit of the tested substance Fatty acids, C18-unsaturated, dimers, hydrogenated (CAS 68783-41-5) and a lack of bioaccumulation potential, toxicity to soil microorganisms cannot be expected. Therefore an additional toxicity test with soil microorganisms would not be reasonable.