Registration Dossier
Registration Dossier
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EC number: 807-272-7 | CAS number: 7182-21-0
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The toxicity to aquatic algae of the test substance, TM 11-0230, was assessed according to OECD Test Guideline 201.
Algae were exposed to nominal concentrations of 1.0, 3.2, 10, 32 and 100 mg/L under static conditions for 72 hours (trhee replicate flasks per concentration). Analysis of the test preparations at 0 and 72 hr showed measured test concentration to range from 92% to 101% of nominal and s teh results are based on nominal test concentration only.
For growth rate, the ErC50 was 11 mg/L; the NOEC was 3.2 mg/L and the LOEC was 10 mg/L. For yield, the EyC50 was 4.9; the NOEC was 1.0 mg/L and the LOEC was 3.2 mg/L.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 11 mg/L
- EC10 or NOEC for freshwater algae:
- 3.2 mg/L
Additional information
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