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EC number: 212-855-9
CAS number: 873-94-9
effects of 3,3,5-trimethylcyclohexanone were determined for fish (Danio
rerio), invertebrates (Daphnia magna), algae (Desmodesmus subspicatus)
and activated sludge microorganisms.
LC50 for Danio rerio was determined to be > 100 mg/L (nominal) in a 96-h
static test according to OECD 203.
an OECD 202 test, the short-term (48 h) EC50 for Daphnia magna was
determined to be 180 mg/l (measured concentration).
3-d EC50 and NOEC for Desmodesmus subspicatus were in excess of the
maximum measured concentration tested of 82.27 mg/L (100 mg/L nominal).
3-h EC50 value for activated sludge from a domestic waste water
treatment plant according to OECD 209 was determined to 755 mg/L
deducting quantities that are used as intermediate according to Article
18 of REACH regulation the registration dossier requires data for
a substance manufactured or imported at > 100 t/a according to Annex IX.
No data are available on long-term toxicity to fish and aquatic
invertebrates. But as the chemical safety assessment did not indicate
the need to investigate further the effects on aquatic organisms, these
endpoints are waived in accordance with REACH Annex IX, column 2.
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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