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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 202-464-1 | CAS number: 95-92-1
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Based on the result of a 28-day study for ready biological degradability and data on the hydrolysis products ethanol and oxalic acid it is concluded that DEO is readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
In the 28-day study for ready biological degradability (according to OECD test guideline 301D and GLP), the degradation of 67.9 % of the test substance Diethyloxalate was attained at the end of the study, but the 10-day window was failed. The criterion "passing the 10 -day window" does not apply for DEO since the degradation of the substance is characterized by a two-step process: hydrolysis to oxalic acid and ethanol (as demonstrated, e.g. in the hydrolysis study and algae study) and subsequent biological degradation of the hydrolysis products (ethanol and oxalic acid are known to be readily biodegradable).Therefore, it is concluded that DEO is 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.
