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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 202-943-5 | CAS number: 101-43-9
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Cyclohexyl methacrylate is readily biodegradable according to OECD criteria.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
The ready biodegradability of cyclohexyl methacrylate was investigated in several studies.
In a CO2-Headspace test according to ISO 14593 which is identical to OECD 310 (Ready Biodegradability – CO2 in sealed vessels) cyclohexyl methacrylate was readily biodegradable. The inoculum used in this study was activated sludge from a laboratory wastewater plant treating municipal sewage. The assay was conducted at test substance concentration of 28 mg/L equivalent of 20 mg/L TOC. After 28 days, a biodegradation degree of 70 - 80 % (TIC/ThIC) was determined (BASF SE, 2004)
In a CO2-evolution test according to OECD-guideline 301B using predominantly domestic sludge and 42 mg/L test material (=10 mg/L TOC) only 20 % biodegradation was observed after 28 days (Evonik Roehm, 2000).
Furthermore, in a MITI-I-Test (OECD 301C) 78 % degradation after 28 days was measured (JETOC, 1992).
In conclusion, cyclohexyl methacrylate is readily biodegradable according to OECD criteria.
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.
