Registration Dossier
Registration Dossier
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EC number: 219-460-0 | CAS number: 2439-35-2
Endpoint summary
Administrative data
Description of key information
Additional information
Based on results from a biodegradation screening test, 2-dimethylaminoethyl acrylate is considered biodegradable. Furthermore, studies on the stability of 2-dimethylaminoethyl acrylate demonstrated that the test substance hydrolyses rapidly under environmental conditions into acrylic acid (CAS# 79-10-7) and 2-dimethylamino ethanol (CAS# 108-01-0). Both hydrolysis products are readily biodegradable.
Therefore, the overall assessment is that 2-dimethylaminoethyl acrylate is readily biodegradable.
The half-life (4.27 h) indicates that after evaporation or exposure to the atmosphere 2-dimethylaminoethyl acrylate will be rapidly degraded by photochemical processes. Q(SAR) calculations showed that a relevant adsorption of the undissociated 2-dimethylaminoethyl acrylate to solid soil phase is not expected (log Koc = 1.1). But under environmental pH values, the substance is expected to be present in the dissociated form. The log Koc was calculated for the charged molecule according to the calculation presented by Franco & Trapp (2008) to be between 3.15 and 3.82 (corresponding Koc = 1404 - 6584) depending on the assumed pH (5.0 - 7.0). Thus, under environmental conditions adsorption to the solid soil phase is to be expected.
From the water surface, the test substance will not evaporate into the atmosphere (H = 0.0023 Pa m³/mol).
No information concerning effects on biodegradation of 2-dimethylaminoethyl acrylate in soil, sediments and surface water are available. However, relevant indirect or direct exposure of soil and sediment is not expected. Moreover, since the substance hydrolyses into readily biodegradable products, simulation studies on biodegradation in surface water are not provided.
Due to the calculated low log Pow (0.425) bioaccumulation is not expected.
In conclusion, 2-dimethylaminoethyl acrylate is considered readily biodegradable and neither persistent nor bioaccumulative in the environment.
Franco F, Trapp S (2008). Estimation of the soil-water partition coefficient normalized to organic carbon for ionizable organic chemicals. Environmental Toxicology and Chemistry 27 (10): 1995-2004.
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