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1,4-Dimethyl-2-(1-phenylethyl)benzene (SAS-296) was tested in a flow-through system in accordance with OECD Test Guideline 305 for 42 days with two concentration levels (1 ppb and 0.1 ppb). A stock solution used in the test was prepared without dispersant but direct dissolution in the test water. BCF values at steady state were determined as 540 for the higher and 620 for the lower concentration level.

In addition, data is available from a reliable QSAR model.

Bioaccumulation of Benzyltoluene is not expected since the criterion for considering substances as being not bioaccumulative (i.e. unlikely to have a BCF > 2,000) are met as can be derived from BCF calculation: The BCF of 725 to 1048 for Benzyltoluene fits well within the lower range of calculated values for BCF of members of the diphenylmethane category. As can be expected a clear correlation exists between molecular weight and the BCF. No further testing is required.

For detailed read across rationale and justification see section 13, Read across document.