Registration Dossier
Registration Dossier
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EC number: 200-311-3 | CAS number: 57-09-0
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Cetrimonium bromide is toxic to freshwater microalgae in the microgram/L range. Data provided from a OECD Guideline study shows EC50 of 4.11 microgram/L, and a NOEC of 1.1 microgram/L.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 4.11 µg/L
- EC10 or NOEC for freshwater algae:
- 1.1 µg/L
Additional information
Two dataset have been evaluated. One OECD Guideline study and a dataset from the Ministry of the Environment of Japan. Both sources show toxicity of cetrimonium bromide to freshwater microalgae in the microgram/L range. Data provided from the OECD Guideline study shows the highest toxicity with EC50 of 4.11 microgram/L, and a NOEC of 1.1 microgram/L.
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