Registration Dossier
Registration Dossier
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EC number: 203-224-9 | CAS number: 104-66-5
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 1.9 mg/L
- EC10 or NOEC for freshwater algae:
- 0.106 mg/L
Additional information
- Effect of KS-235 on the growth of the green alga Selenastrum capricornutum (OECD Guideline No. 201)
ErC10 = 0.68 mg.l-1
ErC50 = 1.9 (1.5 - 2.4) mg.l-1
ErC90 = 5.1 mg.l-1
EbC10 = 0.32 mg.l-1 (95% confidence limits = 0.315 - 0.561 mg.l-1*)
EbC50 = 0.82 mg.l-1 (95% confidence limits = 0.561 - 1.00 mg.l-1*)
EbC90 >1.89 mg.l-1
* range between tested concentrations
NOEC was determined to be 0.106 mg/l
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