Registration Dossier
Registration Dossier
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EC number: 202-851-5 | CAS number: 100-42-5
Endpoint summary
Administrative data
Description of key information
The value for log n-octanol-water partition coefficient (log Kow), which is considered a good predictor for bioconcentration, is approximately three. Since an experimental study showing low bioaccumulation of styrene is considered not valid, the BCF was predicted using log Kow and the equation from the TGD, giving a value of 74. A QSAR was performed as well using the BCF baseline. The BCF was predicted to be between 1.714 and 2.016 l/kg. These values suggests that the compound probably does not accumulate appreciably in aquatic organisms. Moreover, because styrene is probably metabolized and excreted, bioaccumulation is unlikely. This is also supported by the fact that analogue substances, such as toluene, xylene and ethylbenzene do not accumulate to any great degree in aquatic organisms.
Additional information
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