Registration Dossier
Registration Dossier
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EC number: 941-981-3 | CAS number: -
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
No chronic effects on aquatic invertebrates, read across.
Key value for chemical safety assessment
Additional information
Data on the chronic toxicity of Fatty acids, C18 unsaturated, ethyl & methyl esters (EC 941-981-3) to aquatic invertebrates is not available. The assessment was therefore based on a study conducted with the structurally similar substance Fatty acids, C16-18 and C18-unsatd., iso-Bu esters (CAS 84988-79-4) 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 5.1 and within the analogue justification section 13.
The chronic toxicity of the source substance Fatty acids, C16-18
and C18 unsaturated isobutyl esters (CAS 84988-79-4) was tested
according to OECD guideline 202 part II (Wierich, 1995). The test
organism Daphnia magna was exposed to the test substance in a
semi-static system for 21 days, at loadings of 1 and 100 mg/L. The test
solutions were prepared as water accommodated fractions (WAF). At 1 mg/L
no mortality and no significant effect on reproduction was observed. At
100 mg/L reproduction was significantly increased compared to the
control. Thus, a NOELR (21 d) ≥ 100 mg/L was determined.
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, chronic toxicity of Fatty acids, C18 unsaturated, ethyl &
methyl esters (EC 941-981-3) to aquatic invertebrates is not anticipated.
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