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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 247-092-0 | CAS number: 25549-16-0
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The substance is considered as not readily biodegradable as shown by QSAR calculation.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
The substance is an UVCB, therefore all three main components only differing in structure were assessd with QSAR calculation. Three different models were applied: Catalogic 301C, IRFMN implemented in Vega and SRC BioWin 1 - 7 as implemented in EpiSuite. Concluding, all three structures were considered as not readily biodegradable. For detailed results please refer to table 1.
Table 1 QSAR calculation of biodegradability of all three structures. AD = Applicability Domain.
|
Structure 1 |
Within AD |
Structure 2 |
Within AD |
Structure 3 |
Within AD |
IRFMN (Vega) |
Possible Readily biodegradable |
no |
Possible Readily biodegradable |
no |
Possible Readily biodegradable |
no |
Catalogic |
Not ready biodegradable |
yes |
Not ready biodegradable |
yes |
Not ready biodegradable |
yes |
EpiSuite |
|
|||||
BioWin 1-2 |
Biodegrades fast |
yes |
Does not biodegrade fast |
yes |
Does not biodegrade fast |
yes |
BioWin 3-4 |
Weeks - days |
yes |
Months-weeks |
yes |
Months - weeks |
yes |
BioWin 5-6 |
Does not biodegrade fast |
yes |
Does not biodegrade fast |
yes |
Does not biodegrade fast |
yes |
BioWin 7 |
Does not biodegrade fast |
no |
Does not biodegrade fast |
no |
Does not biodegrade fast |
no |
Ready biodegradability prediction |
No |
|
No |
|
No |
|
Overall conclusion |
Not ready biodegradable |
Not ready biodegradable |
Not ready biodegradable |
|||
In Article 13 of Regulation (EC) No 1907/2006, it is laid down that information on intrinsic properties of substances may be generated by means other than tests, provided that the conditions set out in Annex XI (of the same Regulation) are met. Furthermore according to Article 25 of the same Regulation testing on vertebrate animals shall be undertaken only as a last resort.
According to Annex XI of Regulation (EC) No 1907/2006 (Q)SAR results can be used if (1) the scientific validity of the (Q)SAR model has been established, (2) the substance falls within the applicability domain of the (Q)SAR model, (3) the results are adequate for the purpose of classification and labeling and/or risk assessment and (4) adequate and reliable documentation of the applied method is provided.
For the assessment of biodegradation (Q)SAR results were used for aerobic biodegradability in water.The criteria listed in Annex XI of Regulation (EC) No 1907/2006 are considered to be adequately fulfilled and therefore the endpoint(s) sufficiently covered and suitable for risk assessment.
Therefore, further experimental studies of the test item on aerobic biodegradability in water are not provided.
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.
