Registration Dossier
Registration Dossier
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EC number: 279-093-7 | CAS number: 79135-92-5
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
IC 50 (3 h) >100 mg/L
Key value for chemical safety assessment
- EC50 for microorganisms:
- 100 mg/L
Additional information
The inhibitory effect of the substance on aerobic waste-water bacteria was investigated in a respiration test, according to the OECD Guideline 209 (1984). The oxygen concentration was measured after a contact time of 180 minutes with activated sludge fed with a standard amount of synthetic sewage feed. The test substance showed a slight inhibition (7.5 %) of the respiration rate at a concentration of 100 mg/l and so the IC 50 (3 h) was determined to be >100 mg/l.
In conclusion, as the validity conditions were respected, the substance was found not to be toxic to waste-water bacteria.
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