Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 204-279-1 | CAS number: 118-82-1
Endpoint summary
Administrative data
Description of key information
Additional information
Discussion (screening testing)
The key study is an activated sludge die-away biodegradation test using non-adapted and adapted activated sludge. This study resulted in a rapid degradation of the test substance in particular under abiotic and non-adapted conditions, indicating that the substance itself is rapidly degraded. However as almost no mineralisation was observed and the substance was not readily biodegradable in standard tests on ready biodegradation, further investigations on the degradation products are proposed. In a first approach the substance can be regarded as inherently biodegradable.
The following information is taken into account for any hazard / risk / persistency assessment:
The key study is an activated sludge die-away biodegradation test using non-adapted and adapted activated sludge. This study resulted in a rapid degradation of the test substance in particular under abiotic and non-adapted conditions, indicating that the substance itself is rapidly degraded. However as almost no mineralisation was observed and the substance was not readily biodegradable in standard tests on ready biodegradations, further investigations on the degradation products are proposed.
Soil:
From the simulation testing it appears that the substance undergoes rapid primary degradation.
In the aerobic transformation in soil test, the substance can be seen to be oxidized to the major metabolite (≥ 10% AR) M18 (C29H42O2) to form a structure with a maximized number of conjugated double bonds. This structure is amenable to β-oxidation yielding the isomeric metabolites M14 and M15 (C29H42O3). At least, the metabolite M15 is cleaved under formation of the further major metabolites (≥ 10% AR) M5 (C15H22O2) and M8.
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.
