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EC number: 287-809-4 | CAS number: 85586-07-8
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
72h EC50 (Desmodesmus subspicatus, growth rate) > 20 mg/L (nominal, EU Method C.3)
72h EC10 (Desmodesmus subspicatus, growth rate) = 5.4 mg/L (nominal, EU Method C.3)
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 20 mg/L
- EC10 or NOEC for freshwater algae:
- 5.4 mg/L
Additional information
The toxicity of C12-14AS Na (CAS 85586 -0 -8) on aquatic algae was investigated in a study with Desmodesmus subspicatus according to EU Method C.3 (Scholz 1995). The GLP-study resulted in an EC50 (72 h)-value for growth rate of > 20 mg a.i./L. The corresponding EC10 (72 h) for growth rate was 5.4 mg a.i./L. This test is regarded as key study.
Additional information about the toxicity of C12-14AS Na to algae is available from a publication by Verge and Marino 1996. The authors performed a non-GLP-study with Selenastrum capricornutum, according to OECD guideline 201. In this study the EC50 (72 h) for growth rate was determined to be 27 mg/L.
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