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EC number: 264-140-6
CAS number: 63429-28-7
Two reliable QSAR results are
available to assess the aquatic toxicity of the registered substance, on
aquatic invertebrates and algae.
The QSAR predictions (iSafeRat
holistic approach v1.3) has been validated to be compliant with the OECD
recommendations for QSAR modeling (OECD, 2004) and predict the
ecotoxicological values which would be expected when testing the
substance under experimental conditions in a laboratory following OECD
Guidelines. The ecotoxicological predictions were determined using a
validated QSAR for the Mode of Action in question, (MOA 1, non-polar
narcosis). Use of this MOA for substituted α,β-unsaturated
ketones has previously been demonstrated as acceptable in a position
paper (KREATiS, 2015; available in the Endpoint Study Records). This
QSAR is based on validated data for training sets for which the
concentrations of the test substance had been determined by chemical
analyses over the test period. According to these predictions, the 48
-EC50 value for aquatic invertebrates, based on mobility, was determined
to be 1.3 mg/L (95% CL: 1.2 -1.5 mg/L), and the 72h-ErC50 value for
algae, based on growth rate, was determined to be 1.1 mg/L (95% CL: 0.91
- 1.3 mg/L). The substance falls within the applicability domain of the
Environmental fate and pathways
The registered substance is readily
biodegradable and therefore not persistent.
No harmonised classification is
1 mg/L < lowest EC50 value < 10 mg/L;
readily biodegradable but log Kow = 4.55.
according to the Annex VI of the Regulation (EC) No 1272/2008 (CLP): The
test substance is classified Aquatic Chronic 2 for the environment.
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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