Registration Dossier
Registration Dossier
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EC number: 256-367-4 | CAS number: 49553-76-6
Endpoint summary
Administrative data
Description of key information
Additional information
One experimental study according to OECD 301B confirmed that Oleic acid, monoester with oxybis(propandiol) (CAS 49553-76-6) is readily biodegradable according to the OECD criteria (78% biodegradation after 21 d). Therefore, the substance will not be persistent in the environment. The degradation via abiotic hydrolysis is not considered to be a relevant degradation pathway in the environment since QSAR results using HYDROWIN v2.00 resulted in DT50 > 24 h at pH 7. If released into the aquatic compartment this substance is likely to show distribution into the water body at low aqueous concentrations (water solubility 0.123 – 0.955 mg/L) and adsorption to suspended particles and sediment (log Koc 2.98 - 3.4). Upon release into soil, the substance is expected to mainly adsorb to soil particles, but may also be found in pore water at low concentrations. However, due to its ready biodegradability, the substance will not persist in any compartment. Evaporation into air and the transport through the atmospheric compartment is not expected since Oleic acid, monoester with oxybis(propandiol) is not volatile based on the low estimated vapour pressure (2.38E-014 Pa at 20°C). Accumulation in air and the subsequent transport to other environmental compartments is not anticipated. However, if released into air, the substance is susceptible to indirect photodegradation by OH-radicals with a DT50 of 3.13 – 3.34 h (AOPWIN v1.92). The potential for bioaccumulation of Oleic acid, monoester with oxybis(propandiol) is assumed to be low based on a calculation with BCFBAF v3.01 of 17.03 – 80.9 L/kg (BCFBAF v3.01).
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