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EC number: 202-436-9
CAS number: 95-63-6
reliable guideline study has been identified for biodegradability,
therefore a weight of evidence assessment has been used to determine the
biodegradability of 1, 2, 4-trimethylbenzene. Based on the assessment of
four studies, Hutchins (1992), Marion and Melaney (1963), Leahy (2003)
and CITI (1977), as well as QSAR predictions (Biowin and BioHCwin) and
read across from m-xylene, o-xylene and p-xylene, structural analogues,
the substance is considered to be biodegradable and would not be
persistent in the environment.
2, 4-trimethylbenzene is expected to have low potential for
bioaccumulation based on an experimental log Kow of 3.63. The estimated
Koc value of 1097 indicates that the substance is expected to have low
adsorption to suspended solids and sediment in water. Structural
analysis of the 1, 2, 4-trimethylbenzene molecule indicated that it is
not expected to undergo hydrolysis in the environment due to the lack of
hydrolyzable functional groups.
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