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EC number: 271-085-1
CAS number: 68515-43-5
NOEC - 0.83 mg/L
The phthalate esters are1,2-benzenedicarboxylic acids with side
chain esters ranging in carbon chain length from C1 to C13.The US EPA
High Production Volume (HPV) chemical challenge program has proposed
grouping phthalate esters into a single category, divided into 3
sub-categories, this based on the structural similarities of the
substances and theirphysicochemical and toxicological properties. These
sub-categories are: low molecular weight phthalates, transitional
phthalates, and high molecular weight phthalates. The high molecular
weight phthalates are defined as being produced from alcohols with
straight-chain carbon backbones of >C7 or a ring structure. These
include varying mixed isomers of linear and branched diheptyl, dioctyl,
dinonyl, didecyl, diundecyl and ditridecyl phthalate. All exhibit low
solublity in water and are regarded as being too insoluble to exhibit
acute or chronic toxicity. Read-across from closely related phthalates
thus appears reasonable and this is supported by the data, below:
Toxicity to aquatic algae over a 72 hour exposure period has been
investigated according to DIN test methods. Solubilising agents were
used to increase exposure concentrations and no effects were observed at
The inhibitory effect of a phthalate ester with C6 -C10 chain
length on the growth of the green alga Scenedesmus subspicatus has been
determined in accordance with OECD and EU test methods. No inhibitory
effects were observed and the NOEC was 2.8 mg/L.
Effect of a phthalate ester with C8 -C10 chain length have also
been investigated with algae exposed to the highest achievable
concentration of 0.83 mg/L as a water accommodated fraction The
substance was not toxic under the test and the NOEC was 0.83 mg/L)
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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