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EC number: 701-023-5 | CAS number: 85408-61-3
Toxicity to terrestrial arthropods
Administrative data
Link to relevant study record(s)
Description of key information
The chemical safety assessment according to Annex I of Regulation (EC) No. 1907/2006 does not indicate the need to investigate further the toxicity to terrestrial arthropods.
Key value for chemical safety assessment
Additional information
Experimental data on the toxicity of Fatty acids, C16-18 (even numbered) and C18-unsatd., branched and linear, di and triesters with trimethylolpropane (EC-No. 931-531-4) to terrestrial arthropods are not available. In accordance with Regulation (EC) No. 1907/2006, Annex IX, column 2, 9.4 further studies on the effects on terrestrial organisms does not have to be conducted since the chemical safety assessment indicates that there is no need.
The TMP esters of the polyol esters category are characterised by a high Koc indicating a high potential to adsorb to soil particles. Therefore the substances might be ingested by soil-dwelling organism feeding on soil particles. However, the members of the TMP ester group are in all probability not acutely toxic as indicated by the available studies on the acute toxicity of the TMP esters to aquatic organisms. A chronic exposure of terrestrial organisms is not probable since the members of the TMP ester group are readily biodegradable. Thus, they can be expected to be rapidly and ultimately degraded in the terrestrial environment. When ingested by soil dwelling organisms, TMP esters are expected to be rapidly metabolised and thus an accumulation and/or chronic effects are not likely. Two earthworm reproduction tests according to OECD 222 are available for the TMP esters 2-ethyl-2-[[(1-oxoheptyl)oxy]methyl]propane-1,3-diyl bisheptanoate (CAS 78-16-0) and 2-ethyl-2-(((1-oxoisooctadecyl)oxy)methyl)-1,3-propanediyl bis (isooctadecanoate) (CAS 68541-50-4). In both studies no chronic toxicity of the substances to Eisenia fetida was determined (Eisner, 2013). The substances caused neither mortality nor a decrease in body weight of adult earthworms. Also the reproduction rates were not affected by the TMP esters and thus a NOECmort/repro 1000 mg/kg was reported in both studies.
In accordance with Regulation (EC) No. 1907/2006, Annex X, Column 2, 9.4 further studies on the effects on terrestrial organisms do not have to be conducted since the chemical safety assessment indicates that toxicity to terrestrial arthropods is not expected to be of concern.
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