Registration Dossier
Registration Dossier
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EC number: 941-981-3 | CAS number: -
Toxicity to soil macroorganisms except arthropods
Administrative data
Link to relevant study record(s)
Description of key information
LC50 (14 d) > 20,000 mg/kg for Eisenia fetida (OECD 207); read across
Key value for chemical safety assessment
Additional information
There are no studies available on the toxicity of Fatty acids, C18 unsaturated, ethyl & methyl esters (EC 941-981-3) to terrestrial macroorganisms. The assessment was therefore based on a study conducted with the source substance isopropyl myristate (CAS 110-27-0) as part of a read across approach, which is in accordance with Regulation (EC) No. 1907/2006, Annex XI, 1.5. Further justification is given within the overall summary chapter 6.1 and within the analogue justification section 13.
The study conducted with isopropyl myristate (CAS 110-27-0) was performed as a limit test according to OECD guideline 207 and GLP (Steber, 1999). The test organism Eisenia fetida was exposed to isopropyl myristate in artificial soil for 14 days, at the nominal test concentration 20,000 mg/kg. No mortality occurred during the test period. Thus, a LC50 (14 d) of > 20000 mg/kg was derived.
Based on the results from the structurally related read-across substance (in accordance to Regulation (EC) No 1907/2006 Annex XI, 1.5) which are characterized by a similar ecotoxicological profile and comparable structure, it can be concluded that Fatty acids, C18 unsaturated, ethyl & methyl esters (EC 941-981-3) is not toxic to soil macroorganisms.
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