Registration Dossier
Registration Dossier
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EC number: 204-514-8 | CAS number: 122-00-9
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Based on a valid closed-bottle test in accordance with OECD TG 301-D the substance is readily biodegradable. This assessment further is supported by the result of a Modified MITI test according to OECD TG 301-C
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
In a closed bottle test, the test item showed degradation of 45% after 7 days, 59% after 14 days, 62% after 21 days, and 60% after 28 days. The substance therefore fulfilled the pass level of 60% degradation after 28 days. Based on the highly consistent overall data set (degradation reached a stable plateau level on day 14 at latest), the 14-days window (as applicable to the closed bottle test) is also considered fulfilled. The substance therefore can be assessed as being readily biodegradable. This assessment further is supported by the result of a Modified MITI test according to OECD TG 301-C (NITE 2001), where the degradability was found to be more than 70% based on oxygen consumption and more than 90% based on TOC and HPLC analysis.
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