Registration Dossier
Registration Dossier
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EC number: 700-118-9 | CAS number: 676532-44-8
Endpoint summary
Administrative data
Description of key information
The registered substance is readily biodegradable but failing the 14-days window in an OECD 301D biodegradability screening study, thus it is not considered persistent in the environment.
During an advanced OECD 301F study on the registered substance , which included substance specific analyses for both the Parent and the primary metabolite, the DT50 and DT90 of the Parent was determined to be between 1 hour and 24 hours, respectively. Detectable quantities of the Primary Metabolite (2.methyl-2-(1,2,4-trimethylpent-2-enyloxy)propan-1-ol) appeared after 1 hour of incubation and attained a maximum equivalent to 30% of the applied starting material after 48 hours, before demonstrating a gradual decline to less than one-third of this value within the following 4 day period. The expected DT50 of the Primary Metabolite is less than 96 hours. At the end of the test (Day 28) neither Parent nor Primary Metabolite were observed (less than Limit of Detection, equivalent to 0.015% of the Parent starting concentration).
Regarding the abiotic degradation, the half-life times values at 25°C were determined to be 1.6 days, 107.2 days and 49.2 days for pH 4, pH 7 and pH 9, respectively.
The registered substance is considered environmentally immobile in soils (according to P.J. McCall et al., 1981) with a Koc value at 5012 L/kg (log Koc = 3.7).
Finally, with a log Kow value at 4.4, the registered substance is considered to be non bioaccumulable according to PBT screening criteria (< 4.5).
Additional information
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.
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