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EC number: 201-622-7
CAS number: 85-68-7
The mean calculated log Koc for benzyl butyl phthalate is 3.63
Experimental adsorption/desorption data is not available for benzyl
butyl phthalate. As the log Kow is >3 the
adsorption/desorption endpoint cannot be waived. However, ECHA's
Guidance on Information Requirements and Chemical Safety Assessment R7a
Endpoint Specific Guidance (2008) indicates that before commissioning a
new study alternative sources of data (e.g. QSAR) on the
adsorption/desorption potential of a chemical should be used.
Soil sorption of non-ionic substances can be estimated from their log
Kow. Several QSAR have been developed that calculate the Koc of
non-polar hydrocarbons on the basis of their log Kow. Two QSAR have been
used to calculate the log Koc of benzyl butyl phthalate. The calculated
log Koc are 3.41 and 3.86, and the mean of these values has been used in
the risk assessment.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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