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2-ethyl-2-[[(1-oxooleyl)oxy]methyl]-1,3-propanediyl dioleate (CAS-No. 57675-44-2) has a potential to bioaccumulate due to their physico-chemical properties (log Kow > 3). However, as the substance is readily biodegradable, no chronic exposure of aquatic organisms is expected. Due to the high molecular weight, a strong sterical hindrance for crossing biological membranes is indicated. In addition, a QSAR calculation (BCFBAF v3.00) reveals a low bioaccumulation potential (3.16 L/kg regression based estimate). Therefore, in accordance with Annex XIII the substance is not bioaccumulative.