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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 909-017-6 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
In order to assess the biodegradation of the test substance, a screening test was performed according to OECD TG 301D (Closed Bottle test) and under GLP conditions. In this study river water was exposed to 2.0 mg/L of the test substance for 28 days. Inhibition of the endogenous respiration of the inoculum by the test substance at day 7 was not detected. The test is valid as shown by an endogenous respiration of 1.45 mg/L and by the total mineralization of the reference compound, sodium acetate. Sodium acetate was degraded by 89% of its theoretical oxygen demand after 14 days. The oxygen concentrations were >0.5 mg/L in all bottles during the test period. The test substance was biodegraded for 80% at day 28. Over 60% biodegradation was achieved in a period of approximately 13 days immediately following the attainment of 10% biodegradation thereby fulfilling the time window criterion for ready biodegradable substances in a Closed Bottle Test. The test item should therefore be classified as readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
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.
