Registration Dossier
Registration Dossier
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EC number: 947-818-2 | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
53.5% BOD/ThOD in a 28-day OECD 301B test
57.9% BOD/ThOD in a 28-day OECD 302C test
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable, not fulfilling specific criteria
- Type of water:
- freshwater
Additional information
Biodegradation potential of MTDID 44430 was assessed in a ready biodegradability test according to guideline OECD 301F (manometric respirometry) and an inherent biodegradability test according to guideline OECD 302C. In the ready test, MTDID 44430 had 53.5% BOD/ThOD and was not inhibitory to biodegradation in the toxicity control. Based on this result, MTDID 44430 is not readily biodegradable, but is inherently biodegradable. In the inherent test, a final biodegradation value of 57.9% ThOD/BOD in 28 days was measured, but the substance could not be detected in abiotic samples at the end of the test. Test material concentrations are known to be non-stable in aqueous solution, and it is possible that the test material was no longer available for biodegradation throughout the test period. However, the results of the study are conservatively reported as such. Specific criteria were therefore not met in this test.
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