Registration Dossier
Registration Dossier
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EC number: 270-478-5 | CAS number: 68442-22-8
Toxicity to aquatic algae and cyanobacteria
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.
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