Registration Dossier
Registration Dossier
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EC number: 604-580-1 | CAS number: 147256-33-5
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
Hydrolysis is not relevant due to ready biodegradation.
Key value for chemical safety assessment
Additional information
One study investigating the abiotic degradation of Fatty acids, C18-unsatd., dimers, mixed esters with oleic acid and trimethylolpropane (CAS No. 147256-33-5) via hydrolysis is available (Woznica, 2009). The study was conducted according to OECD 111 under the conditions of a preliminary test. An initial test substance concentration of 5 g/L was applied. The determined average recovery of 99 to 101% revealed that the substance is stable and not prone to hydrolysis over 5 days when employing pH values of 4, 7 and 9 at 50 °C. This indicates that hydrolysis is a negligible pathway for the fate of the test substance in the environment and according to OECD criteria, no additional testing is necessary. QSAR calculations (HYDROWIN v2.00) for the main components of the substance support this assumption (DT50 [pH 7] > 1 yr; Hopp, 2011). This result is in line with an assessment of substances as defined by the US-EPA “Aliphatic Polyol Ester Category” (US-EPA, 2010).
US-EPA. 2010. High production volume (HPV) Chemical Challenge Program: Test Plan for the Polyol Esters Category of the Aliphatic Esters Chemicals. 201-16833B, published 12 March 2010.
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