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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Long-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

In a 21-day chronic toxicity study conducted on daphnia an EC50 value of 0.33  and a NOEC of 0.11 mg/L were determined for the read across substance 9-octadecenoic acid sodium salt.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
0.11 mg/L

Additional information

In a 21-day study conducted on daphnids the chronic toxicity of the read across- substance 9 -octadecenoic acid sodium salt (CAS number 143 -19 -1) to aquatic invertebrates was assessed. The test was performed following OECD guideline No. 211. As a result, an EC50 value of 0.33 mg/L and a NOEC of 0.11 mg/L were determined.