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EC number: 239-937-7
CAS number: 15834-04-5
No studies on long-term terrestrial toxicity are available for
this substance. Due to the high Koc a considerable adsorption to
sediment and soil is indicated. However, 2,2-bis[[(1-oxopentyl)
oxy]methyl]propane-1,3-diyl divalerate (CAS-No.15834-04-5) has
been shown to be readily biodegradable. Furthermore, basic data of a
terrestrial plant toxicity test (short-term, OECD 208) with the
read-across substance Fatty acids, C14-18 and C16-18 unsatd., triesters
with trimethylolpropane (CAS 68002-79-9) is available, indicating no
toxicity (NOEC = 300-1000 mg/kg soil dw, LOECs = 1000 mg/kg soil dw). In
addition, Fatty acid esters are metabolised in Fatty acids and alcohols.
These components occur in sediment and soils naturally, are part of
physiological pathways and can be used as energy source. The enzyme
carboxylesterase is omnipresent in the environment, readily degrading
this test substance. Thus, toxic effects caused by the metabolites of
fatty acid esters are implausible.
In conclusion, due to a) the observed absence of toxicological
effects on aquatic organisms, b) the lack of chronic exposure and c)
the, acknowledged metabolisation of fatty acid esters, toxic effects to
terrestrial organisms can be excluded.
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