Registration Dossier
Registration Dossier
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EC number: 205-411-0 | CAS number: 140-31-8
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The 72 hour EC50 (growth rate) was reported as >1000 mg/L.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 1 000 mg/L
Additional information
Two data entries were made for the toxicity to aquatic algae and both appeared to be of acceptable quality. One reported a 72 -hour EC50 based on growth rate at >1000 mg/L and the other reported a 72 -hour EC50 based on biomass at 494 mg/L. Since the 72 -hour EC50 based on growth rate is the scientifically preferred endpoint (according to OECD 201), this was selected as the key study and endpoint.
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