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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

The acute toxicity in fresh water algae was evaluated for an analog of this substance, EC 283-392-8 and ErL50 (0-72hr) value of 24 mg/L loading rate WAF was obtained. Therefore, the test substance is expected to be acutely not harmful to algae. 

Key value for chemical safety assessment

EC50 for freshwater algae:
24 mg/L

Additional information

Since tests on toxicity of the UVCB substance itself to aquatic algae are not available, a conclusion by analogy approach according to Annex XI of REACH has been applied.

The acute toxicity of an analog of this substance, EC 283-392-8,was evaluated in freshwater algae in accordance with OECD Guideline 201 (Vryenhoef, H, 2005). Exposure of Scenedesmus subspicatus to the test material gave an EbL50 (72h) value of 21 mg/L loading rate WAF and an ErL50 (0-72hr) value of 24 mg/L loading rate WAF. The No Observed Effect Loading rate was 10 mg/L loading rate WAF.