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EC number: 201-622-7
CAS number: 85-68-7
with ECHA guidance, PNECs were derived for benzyl butyl phthalate based
on the available ecotoxicological data with the appropriate assessment
factors applied considering the extent of the available data set.
Acute (LC50 and
EC50) data were available at three tropic levels, invertebrates, algae
and fish. The most sensitive result was for an algae. This EC50 value
was used to derive the PNEC for intermittent releases in water.
data were available at three tropic levels, invertebrates, algae and
fish. The most sensitive result was for a freshwater fish Pimephales
promelas. This NOEC was used to derive the freshwater and marine
water PNEC. As all these results were for freshwater species a higher
assessment factor was applied to generate the marine water PNEC.
data on the toxicity of benzyl butyl phthalate in sediments or soils are
available. Therefore the equilibrium partitioning method was applied to
the freshwater PNEC to obtain the PNEC for freshwater sediments and
soils, and to the marine waters PNEC to obtain the PNEC for marine
As no data were
available for the toxicity of the substance to microorganisms the PNEC
for STPs was determined from the concentration used in an inherent
biodegradability test where no inhibition of the microorganisms was
observed. This concentration was therefore considered as a NOEC. An
assessment factor (10) was applied to generate the PNEC.
67/548/butyl benzyl phthalate is classified as hazardous to the
environment with the classification ‘R50/R53 Very toxic to
aquatic organisms, may cause long-term adverse effects in the aquatic
environment’ and has the symbol of ‘N : Dangerous for the
environment’. Under the GHS/CLP butyl benzyl phthalate is
classified as both ‘Aquatic Acute 1’ and ‘Aquatic
The available ecotoxicological data
agree with these assignments.
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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