Registration Dossier
Registration Dossier
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EC number: 235-476-0 | CAS number: 12239-87-1
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The substance is not readily biodegradable, according to OECD criteria.
Key value for chemical safety assessment
- Biodegradation in water:
- not biodegradable
- Type of water:
- freshwater
Additional information
A GLP study conducted according to OECD test guideline 301C is available for the test substance CAS 12239-87-1. In this study the substance was degraded by 5% based on the O2 consumption after 28 days of incubation (NITE, J-CHECK databank, Japan 2003).
This result was supported by a test accomplished according to OECD guideline 301 C performed with the structuraly similar substance CAS 147 -14 -8. The substance was degraded by 0 % based on the O2 consumption after 14 days of incubation (NITE, J-CHECK databank, Japan 1992). Both tests were conducted under supervision of the Japanese Ministry of the Environment. These studies were performed with a mixture of sewage, soil and natural water as inoculum.
Additionaly, a key study conducted similar to OECD guideline 301F (Manometric respirometry test) is available for the structurally similar substance CAS 147 -14 -8. In this study domestic activated sludge was used as inoculum. A degradation rate of less than 1 % was determined after 28 days (based on O2 consumption, BASF AG, 1988).
Based on the available experimental data for CAS 12239-87-1 supported with the available experimental data from the structurally similar substance CAS 147-14-8 and from the it can be concluded that the substance (CAS 12239 -87 -1) is not readily biodegradable according to OECD criteria.
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