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EC number: 266-380-7
CAS number: 66492-51-1
Acutely toxic to aquatic organisms. The inhibition of the degradation
activity of activated sludge is not anticipated when introduced in
appropriate low concentrations.
Acute tests on all three trophic levels were performed to examine the
aquatic toxicity of the submission item. Fish turned out to be the most
sensitive species revealing an LC50 (96h) of 4 mg/L. Thus, the
submission item is considered to be acutely toxic to aquatic organisms.
Effects of the submission item towards algae and water flea (Daphnia
magna) were less severe providing an ErC50 (72h) of 34 mg/L for algae
and an EC50 (48h) of 20 mg/L for water flea. Results from several QSAR
estimations using the OECD toolbox and ECOSAR support the conclusion
drawn above on the acute aquatic toxicity of the substance.
No data on aquatic long-term toxicity of the submission item are
The EC10 value of the test item on activated sludge was found to
be 300 mg/L in a GLP guideline study according to OECD 209 (BASF SE
08G0455/11G149, 2012). Hence, the inhibition of the degradation activity
of activated sludge is not anticipated when introduced in appropriate
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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