Registration Dossier
Registration Dossier
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EC number: 917-780-1 | CAS number: 1176286-43-3
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
EC10 (18 h) = 883 mg/L (ISO 10712), therefore no toxic effects on microorganisms are to be expected (read across).
Key value for chemical safety assessment
Additional information
No data are available for Fatty acids, soybean oil, conjugated (CAS 1176286 -43 -3). Therefore ecotoxicological effects are predicted from adequate and reliable data for source substance(s) by read-across to the target substance within the group applying the group concept in accordance with Annex XI, Item 1.5, of Regulation (EC) No 1907/2006.
For Fatty acids, soybean oil, conjugated read across is performed to palmitic acid C16 (CAS 57 -10 -3) and stearic acid C18 (CAS 57 -11 -4).
For palmitic acid one test is available which is conducted according to DIN 38472 Part 27 (Kirch, 1994). In this test an EC10 > 3000 mg/L is reported after 30 min exposure based on respiration rate. Though this test does not meet the requirements of todays standard procedures, the results are considered reliable to demonstrate the low toxicity of the test substance. Nevertheless, in addition, read-across is performed to a study conducted with stearic acid. For this substance a cell multiplication inhibition test was conducted following GLP-requirements (Coenen, 1989). The used method in the test was similar to the ISO guideline 10712. In the study an EC10 (18 h) of 883 mg/L (nominal) was reported.
Taking into account the stated results fatty acids, soybean oil, conjugated is regarded to be not toxic to microorganisms.
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