Registration Dossier
Registration Dossier
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EC number: 298-364-0 | CAS number: 93803-89-5
Toxicity to terrestrial arthropods
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
Experimental data on the toxicity of 2,2-bis[[(1-oxoisononyl)oxy]methyl]-1,3-propanediyl diisononanoate (CAS 93803-89-5) to terrestrial arthropods are not available. In accordance with Regulation (EC) No. 1907/2006, Annex IX, column 2, 9.4 studies on terrestrial organisms do not need to be conducted if there is no risk indicated by the chemical safety assessment.
Basedon the available experimental toxicity data the substance is expected to be not toxic to soil organisms. The substance is characterised by a high log Koc (log Koc > 5) indicating a considerable potential for adsorption to the soil particles. Due to the low water solubility (< 0.05 mg/L), only low concentrations are expected in the pore water, which is the main exposure route for terrestrial plants. Therefore, tests with soil-dwelling organisms like earthworm which allows potential uptake via surface contact, soil particle ingestion and porewater (ECHA, 2012), are most relevant for the evaluation of soil toxicity. In addition, in the absence of a clear indication of selective toxicity, an invertebrate (earthworm or collembolan) test is preferred, as outlined in ECHA guidance section R.7.11.5.3, page 122. Thus, it can be assumed that earthworms would be highly exposed to toxicants in soil and hence are most sensitive to the potential adverse effects of the substance.
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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