Registration Dossier
Registration Dossier
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EC number: 256-350-1 | CAS number: 48076-38-6
Endpoint summary
Administrative data
Description of key information
The biodegradation potential for the group is assessed based on data available for 2-Propenoic acid C12-14-alkyl esters (CAS 84238-60-8), 2-Propenoic acid C16-18-alkyl esters (CAS 90530-21-5) and 2-Propenoic acid, C18-22-alkyl esters (CAS 85085-17-2). Taking all data together, the long-chain acrylate esters category is considered to be readily biodegradable but failing the 10 - day window. In accordance with column 2 Annex VII section 9.2.2.1 of Regulation (EC) No 1907/2006 (REACH), further biodegradation studies in water, sediment and/or soil need to be conducted.
Additional information
Biodegradation in water: screening test (Weight of Evidence approach)
Data from studies with 2-Propenoic acid, C16-18-alkyl esters (CAS 90530-21-5) revealed biodegradation. Nevertheless, the strict criteria for ready biodegradation were not fulfilled. As the test substance consists of different constituents the 10-day window is not applicable.
To be able to finally conclude on this endpoint additional data form another long chain acrylates were considered. 2-Propenoic acid C12-14-alkyl esters (CAS 84238-60-8) was shown to be clearly readily biodegradable. 2-Propenoic acid, C18-22-alkyl esters (CAS 85085-17-2) show that the test substance is nearly completely degraded after 60 days and can thus be judged to be ready biodegradable, but failing the 10- day window. Such a prolonged test is not available for 2-Propenoic acid C16-18 and C18-22 -alkyl esters (CAS 90530-21-5; 85085-17-2), but similar results are expected, as the longer C-chained acrylates represent a worst case in this sense.
Taking all data together, the long-chain acrylate esters category is considered to be readily biodegradable but failing the 10 - day window.
Biodegradation in water and sediment: simulations test
In accordance with column 2 of REACH Regulation (EC) No 1907/2006, Annex IX, section 9.2.1.2 and section 9.2.1.4, no study on biodegradation in water and sediment needs to be conducted if the test substance is biodegradable under test conditions. The long-chain acrylate esters category (C12 - C22) are all readily biodegradable under test conditions. Thus no further biodegradation testing in water and sediment is required.
Biodegradation in soil
In accordance with column 2 of REACH Regulation (EC) No 1907/2006, Annex IX, section 9.2.1.3, no study on biodegradation in soil needs to be conducted if the test substance is biodegradable under test conditions. The long-chain acrylate esters (C12 - C22) are all readily biodegradable under test conditions. Thus no further biodegradation testing in soil is required.
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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