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EC number: 230-896-0
CAS number: 7360-38-5
Propane-1,2,3-triyl 2-ethylhexanoate (CAS No. 7360-38-5) is
hydrolytically stable and therefore abiotic hydrolysis is not a relevant
pathway in water. However, the substance is readily biodegradable and
will rapidly be removed from natural water compartments as well as from
wastewater in sewage treatment plants. The substance has a log Koc of
5.761 - 6.28 indicating a potential to adsorb to soil and sediment
particles. The estimated half time for the reaction with OH-radicals is
14 hours (24h day; OH-concentration: 0.5E+06 OH/cm3). However,
photodegradation is not an important environmental fate process since
the substance is not expected to evaporate into the atmosphere due to
its very low vapor pressure of < 0.0001 Pa at 20 °C.Due to its low water
solubility (< 0.05 mg/L in aqua bidest), ready biodegradability and
potential for adsorption to soil and sediment particles, only low
concentrations of Propane-1,2,3-triyl 2-ethylhexanoate are expected to
be released into the aquatic environment. The substance will be
bioavailable to aquatic organisms mainly via feed and contact with
suspended organic particles. Propane-1,2,3-triyl 2-ethylhexanoate is not
bioaccumulative, based on the criteria given in Regulation (EC) No.
1907/2006, Annex XIII, 1.1.2 (BCF < 2000 L/kg). After uptake by fish
species, extensive and fast biotransformation of the substance by
carboxylesterases into 2 ethylhexanoic acid and the corresponding
alcohol is expected. BCF/BAF values estimated with the BCFBAF v3.01
program, Arnot-Gobas model including biotransformation, also indicate
that this substance will not be bioaccumulative.
In conclusion, Propane-1,2,3-triyl 2-ethylhexanoate is effectively
removed from the environment by biotic and abiotic degradation
processes. Due the low water solubility and high adsorption potential,
the main route of exposure for aquatic organisms such as fish will be
via food ingestion or contact with suspended solids. Ingested amounts of
the substance in organisms are expected to be effectively metabolized to
2 ethylhexanoic acid and the glycerol.
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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