Registration Dossier
Registration Dossier
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EC number: 231-335-2 | CAS number: 7493-74-5
Endpoint summary
Administrative data
Description of key information
Additional information
Studies evaluating the short term toxicity of the substance to aquatic organisms are available for three trophic levels (fish, aquatic invertebrates, algae). Fish was found to be the most sensitive organism with an EC50 (96 h) of 0.133 mg/L (geom. mean meas.), followed by aquatic invertebrates with an EC50 (48 h) of 2.07 mg/L (geom. mean meas.), and algae with an ErC50 (72 h) of 24.9 mg/L (TWA). Long term toxicity data are available only for algae with an ErC10 (72 h) of 12.7 mg/L (TWA).
The substance did not cause inhibition of activated sludge microorganisms, as indicated by the toxicity control of the study on ready biodegradability (OECD 301 D). A NOEC (14 d) of≥2 mg/L (nominal) was determined. Therefore, inhibition of the degradation process in sewage treatment plants is not expected.
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