Registration Dossier
Registration Dossier
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EC number: 258-799-9 | CAS number: 53817-09-7
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
The test substance is not readily biodegradable according OECD criteria. It is moderately/partially biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- inherently biodegradable
Additional information
In a guideline-conform study conducted under GLP according to OECD Guideline 301 F (respirometer test), a biodegradability of 20 - 30% was observed after 28 days, indicating that the substance cannot be considered as readily biodegradable according to OECD criteria (BASF SE 2002). When taking into account the enhanced biodegradation testing regime, as discussed in ECHA's "Guidance on Information Requirements and Chemical Safety Assessment Chapter R.7b: Endpoint specific guidance", p195 -197, such test approaches for enhanced biodegradation screening tests could include extension of test duration. Since after 48 days a biodegradation of 90 - 100 % was observed, the substance therefore can be considered as inherently biodegradable.
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