Registration Dossier
Registration Dossier
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EC number: 701-440-2 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Two studies in accordance with the OECD Test Guideline 301 D (Closed Bottle Test) and GLP requirements were conducted.
In the first study, the test substance reached 41% biodegradation at the end of the trial (28 days).
To obtain further information on the biodegradation of the test substance, a second study was conducted with a prolonged exposure period. In this study, the test substance reached 51% degradation at day 28, 60% degradation at day 35 and 70% at the end of the trial (56 days). Therefore, the results of this enhanced (extended) screening test indicate that the substance is inherently biodegradable and thus not persistent in the environment.
In addition, the biotic degradation products were identified and quantified via the QSAR CATALOGIC 301C Model v.11.15. Metabolic trees and quantities of each degradation product above 0.1 mol/mol parent molecule were estimated via this model. The in silico approach was chosen as the most appropriate method to assess the degradation products considering that the parent substance is a complex UVCB consisting of several major constituents. All known constituents were taken into account in this assessment.
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable, fulfilling specific criteria
- Type of water:
- freshwater
Additional information
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