Registration Dossier
Registration Dossier
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EC number: 926-000-9 | CAS number: 1180524-77-9
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
In an OECD 201 study after 72 hours there was no acute toxicity up to the highest test concentration and the ErL50 was reported as > 4910 mg/L. The NOELr was reported as 31.25 mg/L. The results are expressed in terms of Effective Loadings (EL).
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 4 910 mg/L
- EC10 or NOEC for freshwater algae:
- 31.25 mg/L
Additional information
The key value has to be understood as > 4910 mg/L as there was no effect up to the highest test concentration of 320 mg/L.
The substance has not a definite or unique structure and consists of serveral components. A Water Accommodated Fraction (WAF) was used to test effects at a limit effective loading of 100 mg/L no specific analysis was performed. The content of the water soluble fractions of the test item during the exposure period was verified by HPLC analysis and UV/VIS-detection.
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