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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 246-644-8 | CAS number: 25134-21-8
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Biodegradation: the substance itself (anhydride) is not readily biodegradable. However the corresponding degradation product (acid) is expected to be readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
An experimental ready biodegradation test was conducted according to OECD TG 301C. The substance was exposed to activated sludge at 24.0 - 26.0 degree C for 28 days. No biodegradation occurred within this time period as indicated by both indirect and direct analyses. The substance is considered not to be biodegradable.
However the screening test inherent to the water biodegradability of the degradation product, calculated using the same software BIOWIN v4.10, indicate that the corresponding acids (5 -METHAc, 4 -METHAc) are expected to be readily biodegradable.
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.
