Registration Dossier
Registration Dossier
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EC number: 695-735-2 | CAS number: 68489-14-5
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
EC50 for growth rate was found to be 76 mg/L after 72 hours. The EC50 for yield was found to be 36 mg/L after 72 hours. The NOEC for both growth rate and yield was found to be 25 mg/L.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 76 mg/L
- EC10 or NOEC for freshwater algae:
- 25 mg/L
Additional information
The toxicity to algae was assessed following the methods outlined in the OECD 201 guidelines. Test concentrations were measured analytical by GC-HPLC and measured results were found to be 83 -108% of nominal concentrations. Therefore, nominal concentrations were used to report the results. EC50 for growth rate was found to be 76 mg/L after 72 hours. The EC50 for yield was found to be 36 mg/L after 72 hours. The NOEC for both growth rate and yield was found to be 25 mg/L.
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