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The available toxicity and chemistry test data for the substance are evaluated using expert judgement and currently accepted principles of absorption, distribution, metabolism and excretion.Alkylated naphthalene has a very low water solubility (<2 μg/l), therefore dissolving into the gastrointestinal fluids will be limited. Alkylated naphthalene is a UVCB substance. Its approximate molecular weight is moderate to high (MW = 633.15, based on average molecular formula C46H80), absorption is thus not favoured by its size. Alkylated naphthalene has a high log Pow (> 8.2 at 20°C), which indicates a low potential to bioaccumulate.Alkylated naphthalene is a close structural analog of alkylnaphthalene . The substances have similar chemical and physical properites and the toxicokinetic assessment for alkylated naphthalene can be used as read-across to alkylnaphthalene.
In view of the properties of the substance and according to the criteria
given in the REACH Guidance, for risk assessment purposes the
absorption is estimated to be 10% for dermal, 10% for oral and 10% for
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