Registration Dossier
Registration Dossier
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EC number: 264-120-7 | CAS number: 63393-96-4
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
In an OECD 201 test using Desmodesmus subspicatus the aquatic toxicity to algae after 72 h was determined. The median effect concentration with respect to growth rate ErC50 of Quaternary ammonium compounds, tri-C8-10-alkylmethyl, chlorides, to Desmodesmus subspicatus was calculated to be 0.290 mg/l loading rate. The ErC10 for 72 h was determined to be 0.138 mg/L.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 0.29 mg/L
- EC10 or NOEC for freshwater algae:
- 0.138 mg/L
Additional information
In an OECD 201 test using Desmodesmus subspicatus the aquatic toxicity to algae after 72 h was determined. The median effect concentration with respect to growth rate (ErC50/0-3 days) of Quaternary ammonium compounds, tri-C8-10-alkylmethyl, chlorides, to Desmodesmus subspicatus was calculated to be 0.290 mg/l loading rate (95% confidence limits: 0.207–0.390 mg/l).The ErC10 for 72 h was determined to be 0.138 mg/L
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