Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
not readily biodegradable
Key value for chemical safety assessment
- Biodegradation in water:
- not biodegradable
- Type of water:
- freshwater
Additional information
Target substance is a multi-constituent substance. The 2 constituents differ by a methyl group. The potential for ready biodegradation was tested according to OECD 301E on constituent 2 of target substance. Due to the structural similarity, such data is considered as representative of the whole substance. Details on the read-across are available in section 13.
A DOC removal of 10 - 20% DOC in 28 days was observed.
Triarylmethanes are known to be poorly biodegradable, in fact studies on the biodegradation of other triarylmethane dyes (Yatome et al. 1993) indicated that only minor parts of the C-backbone are susceptible to biodegradation.
Overall, the substance can be considered as not ready biodegradable.
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