Registration Dossier
Registration Dossier
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EC number: 205-581-6 | CAS number: 143-06-6
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
EyC50(72h) >100 mg/L
ErC50(72h) >100 mg/L
Key value for chemical safety assessment
- EC10 or NOEC for freshwater algae:
- 100 mg/L
Additional information
The toxicity to aquatic algae of the substance was assessed according to the OECD Guideline 201.
A non-GLP range finding test with nominal concentrations of 1, 10 and 100 mg/L of substance was performed. Only minimal effects were observed, therefore the definitive test was performed as a limit-test at the nominal concentration of 100 mg/L.
No significant effects were observed at 100 mg/L, as compared to the untreated controls. Based on the results of this study, the median effect concentration with respect to yield and growth rate EyC50(72h)/ErC50(72h) were estimated to be >100 mg/L.
The no observed effect concentration with respect to yield and growth rate was determined to be 100 mg/L nominal concentration.
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