Registration Dossier
Registration Dossier
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EC number: 268-596-7 | CAS number: 68130-53-0
Endpoint summary
Administrative data
Description of key information
Additional information
No studies on long-term terrestrial toxicity are available for this substance, however, this substance is predicted to be readily biodegradable therefore, no chronic exposure of terrestrial organisms is expected.
An earthworm reproduction study (in accordance with OECD Guideline 222) was conducted with read-across substance, CAS 78-16-0. The NOEC (28 day) based on mortality was determined to be =/> 1000 mg/kg soil dw and the NOEC (56 day) based on reproduction was determined to be =/> 1000 mg/kg soil dw. Therefore, by read-across, the test substance is not expected to have toxic effects on soil macroorganisms.
Three published studies are available that show fatty acids and fatty ester are degraded by soil microrganisms.
In addition, a terrestrial plant toxicity test (short-term, OECD 208, Klimisch 4) with the read-across substance, fatty acids, C14-18 and C16-18 unsatd., triesters with trimethylolpropane (CAS-No. 68002-79-9), is available, indicating no toxicity (NOEC = 300-1000 mg/kg soil dw, LOECs = 1000 mg/kg soil dw).
Fatty acid esters are readily metabolised to fatty acids and alcohols. These components naturally occur in sediment and soils, are part of physiological pathways and can be used as energy source.
In conclusion, due to the observed absence of toxicological effects on aquatic organisms and the lack of chronic exposure and the, known metabolism of fatty acid esters, toxic effects to terrestrial organisms can be excluded.
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