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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 251-717-2 | CAS number: 33885-51-7
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
In the screening study according to OECD TG 301D 14% biodegradation was found after 28 days. This study shows that the substance is not readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
- Type of water:
- freshwater
Additional information
The ready biodegradability was determined in the Closed Bottle test (OECD TG 301D) performed according to slightly modified OECD, EU and ISO Test Guidelines, and in compliance with the OECD principles of Good Laboratory Practice. The test substance did not cause a reduction in the endogenous respiration (at 1 mg/L). The test substance is therefore considered to be non-inhibitory to the secondary activated sludge. The validity criteria of the test were met. Pino Acetald was biodegraded by 14% at day 28 in the Closed Bottle test. In the prolonged Closed Bottle test, the test item was biodegraded by 72 % at day 60 (enhanced biodegradability testing). This result demonstrates that the test substance is not readily biodegradable. Biodegradation percentages of >60 within a 60-day time period allow classification of the test substance as not persistent.
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.
