Registration Dossier
Registration Dossier
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EC number: 413-390-6 | CAS number: 149144-85-4
Endpoint summary
Administrative data
Description of key information
Additional information
A base-catalysed second-order hydrolysis rate constant of 0.3498 L/mole-sec was calculated, corresponding to half-lives of 229 years at pH 7 and 23 days at pH 8.
The biodegradation of the test material Bis(C12-C13)alkyl-2-hydroxybutandioate measured by manometric repirometry was 77% after 28 days of incubation, approx. 48 % at the end of the 10-day window. Bis(C12-C13)alkyl-2-hydroxybutandioate was judged to be readily biodegradable, but failing 10 -day window. Because the substance is regarded as an UVCB the 10d-window criteria has not to be met and is regarded as “readily biodegradable”.
The calculated BCF was 195.4 L/kg wet weight. Therefore the substance is not expected to be bioaccumulative.
The McCall classification scheme classifies the substances as immobile in soil (Koc>5000) because of the log KOC of 5.016 (according to MCI method) and 5.648 (according to KOW method).
The Henry's Law constant of 4.4E-005 atm-m3/mole indicates that the substance is not volatile from surface water.
Soil and water were found to be the major target compartments.
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