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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 689-267-8 | CAS number: 501925-98-0
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The ready biodegradability of the test item was determined with non-adapted activated sludge in the Manometric Respirometry Test for a period of 28 days according to OECD guideline 301 F .The test item concentration selected as appropriate was 30 mg/L, corresponding to a ThOD of 51 mg O2/L per test vessel.
The mean oxygen depletion in the inoculum control was 9.9 mg O2/L on day 28. The pass level > 60 % was reached by the functional control within 2 days. The biodegradation reached a maximum of 100 % degradation on day 27. In the toxicity control containing both test and reference item 64 % degradation occurred within 14 days with a maximum of 68% after 28 days. The test item does not inhibit the bacteria in the sewage sludge.
Both test item replicates reached the 10 % level (beginning of biodegradation) within 1 day. The 60 % pass level was not reached within 28 days by the test item replicates. After 28 days the mean biodegradation was 40 %.
The validity criteria of the guideline are fulfilled.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
Both test item replicates reached the 10 % level (beginning of biodegradation) within 1 day. The 60 % pass level was not reached within 28 days by the test item replicates. After 28 days the mean biodegradation was 40 %. The test item is classified as not readily biodegradable within 28 days.
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.
