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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 259-996-2 | CAS number: 56107-04-1
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The degradation of the test item was 80.7% within 28 days (after acidification).
The test item reached the criterion for ready biodegradability.
By the use of read across it can then also be determined that the 3-(p-tert-butylphenyl)-2-methylpropanol is also biodegradable
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
The degradation extent of the test item was 80.7% within 28 days after acidification (mean of three replicates, see table 1). For finding the exact position of the 10-d-window the degradation extents of the days without measurement were calculated by interpolation (see table 3). On day 15 the calculated mean degradation extent of the test item was for the first time higher than 10% (mean value: 13.7%, see table 3). Accordingly, the end of the 10-dwindow is on day 25. On day 21 the mean degradation extent of the test item already reached 60.5%. At the end of the 10-d-window (day 25) the degradation extents of the three replicates were between 63.2% and 78.4%. Therefore the test item reached the pass level for ready biodegradability (60% ThCO, and 10 d-window, see table 3 and fig. 1).
The degradation of the test item was 80.7% within 28 days (after acidification). The test item reached the criterion for ready biodegradability.
By the use of read across it can then also be determined that the 3-(p-tert-butylphenyl)-2-methylpropanol is also 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.
