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EC number: 276-380-9
CAS number: 72140-65-9
MTDID 15670 is hydrolytically active. The half-life at pH7 and room
temperature is too short to allow quantification. It does not show
direct toxicity in mammalian systems. Aquatic toxicity and
bioaccumulation potential are addressed by the hydrolysis products:
Tetrafluoroboric acid (CAS# 16872-11-0), Crotononitrile (CAS#
4786-20-3), and dodecyl ethyl sulfide. The substance itself is not PBT
Tetrafluoroboric acid is inorganic and therefore not subject to PBT
Crotononitrile was addressed by modeling and experiment. By QSAR
modeling, it is readily biodegradable and has a log Kow of 0.62. In
aquatic toxicology testing, it was not toxic at nominal concentrations
of 100 mg/L. Therefore, Crotononitrile is not PBT or vPvB.
Dodecyl ethyl sulfide was addressed by modeling. Because it is not
available commercially, a surrogate, dodecyl methyl sulfide was used for
aquatic toxicity testing. By multiple lines of evidence, it is not
persistent, but it has a log Kow of 6.8. In acute aquatic toxicology
testing, the surrogate was not toxic at nominal concentrations of 100
mg/L. In the absence of any other results, the acute data are
insufficient to conclude on Toxicity. Therefore, Dodecyl ethyl sulfide
is not PBT or vPvB.
By several lines of evidence, the constituent of this substance AND its
hydrolysis products do NOT meet the specific criteria in Annex XIII
Section 1, or while not allowing a direct comparison with all the
criteria, nevertheless indicate that each substance would not have these
properties. Substance is NOT PBT or vPvB.
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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