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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: - | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
52 % degradation after 28 days, not readily biodegradable: OECD 301 B, EU Method C.4-C, EPA OPPTS 835.3110, Clarke (2008). Substance is considered to be inherently biodegradable based on the significant degradation achieved during this study.
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable
- Type of water:
- freshwater
Additional information
In the key study (Clarke 2008), the ready biodegradability of the test material was determined in a GLP study performed in accordance with the standardised guidelines OECD 301 B, EU Method C.4 -C and EPA OPPTS 835.3110, using the CO2 evolution test. The study was assigned a reliability score of 1 in line with the principles for assessing data quality as defined by Klimisch et al. (1997).
The test material, at a concentration of 10 mg Carbon/L, was exposed to activated sewage sludge micro-organisms with culture medium in sealed culture vessels in the dark at approximately 21 °C for 28 days. The degradation of the test material was assessed by the determination of carbon dioxide produced. Control solutions with inoculum and the standard material, sodium benzoate, together with a toxicity control were used for validation purposes.
The test material attained 52 % degradation after 28 days and therefore cannot be considered to be readily biodegradable under the conditions of the test.
The substance is considered to be inherently biodegradable based on the significant degradation achieved during this study.
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.
