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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

In valid screening studies for ready biodegradability, no significant biodegradation was found, either with the entire UVCB substance Oligomerisation and alkylation reaction products of 2-phenylpropene and phenol [EC no. 700-960-7] or with two main constituents, the phenolic constituent p-cumylphenol [CAS no. 599-64-4] and the dimeric non-phenolic constituent, 4-methyl-2,4-diphenylpent-1-ene [CAS no. 6362-80-7] (*). However, the latter proved to be biodegradable in a study acc. to OECD 302 C [MITI(II) test] (see following endpoint summary "Biodegradation in water (2)" along with the robust study summary).


(*) = 1,1'-(1,1-dimethyl-3-methylene-1,3-propanediyl)bisbenzene (EC no. 228-846-8; CAS no. 6362-80-7)

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

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