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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

No effects up to the limit of water solubility expected (WS < 1 mg/L) 

Key value for chemical safety assessment

Additional information

One study evaluating the acute toxicity of Fatty acids, C12-16 (even numbered) and C18-unsatd., methyl esters (CAS No. 1234694-02-0) to aquatic invertebrates is available (Migchielsen, 2010). This test was conducted according to OECD Guideline 202, under GLP conditions. Daphnia magna was exposed to the test substance for 48 h within a semi-static water regime, at a nominal loading rate of 100 mg/L. The test concentration was monitored during the study by gas chromatography determination. After the exposure period, no immobilization was observed in control or treatment groups and therefore, the EL50 (48 h) was determined to be ˃ 100 mg/L (WAF loading rate, nominal) and > 0.16 mg/L (average measured concentration).