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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 700-527-2 | CAS number: 1271488-66-4
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Biodegradation has been assessed in two screening test. the substance is not readiliy biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable
Additional information
BIOWIN version 4.10 (2009) (EPISUITE) estimates the probability of rapid aerobic and anaerobic biodegradation of an organic compound in the presence of mixed populations of environmental microorganisms. BIOWIN contains 6 separate models for aerobe biodegradation. All the models predict that the test substance is readily degradable and biodegrades fast with an ultimate biodegradation of weeks and a primary degradation timeframe of days.
In the screening test on biodegradation in water, two results based on DOC and one result based on the actual test substance concentration measurement were reported. The results from van der Zee showed biodegradation of >76% after 28 days, but biodegradation of at least 60% was not attained within 10 or 14 days of biodegradation exceeding the 10% biodegradation level. On the basis of this result, the substance would have been classified as readily biodegradable, failing the 10-day window. The results of the closed bottle test from Notox did not pass the level of 70% biodegradation after 28 days. The study of Notox also reported biodegradation on the basis of the test substance concentration. Degradation was around 40% meaning that 60% of the test substance was still present in the test samples.
It is concluded that the test substance is inherently biodegradable, since there is unequivocal evidence of biodegradation.
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.
