Registration Dossier
Registration Dossier
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EC number: 285-206-0 | CAS number: 85049-36-1
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
No toxic effects up to the limit of water solubility; read across
Key value for chemical safety assessment
Additional information
Data on the acute toxicity of Fatty acids, C16-18 and C18-unsatd., ethyl esters (CAS 85049-36-1) to aquatic algae is not available. The assessment was therefore based on a study conducted with the structurally similar substance Fatty acids, C16-18 and C18-unsaturated isobutyl 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 6.1 and within the analogue justification section 13.
This study conducted with Fatty acids, C16-18 and C18 unsaturated isobutyl esters (CAS 84988-79-4) was performed as a limit test according to the EU guideline 92/69/EWG and GLP (Berger, 1995). The test organism Scenedesmus subspicatus was exposed to the test substance in a static system for 72 hours, at the nominal test concentration 100 mg/L. The test was performed with and without separation of undissolved test material. Algal growth was significantly inhibited when undissolved test substance was present. However, when the undissolved phase was separated, no effects on growth were observed. The inhibition can be thus regarded as associated physical effects caused by the undissolved material present. It can be concluded that the substance has no toxic effects on test organism up to the limit of water solubility. Based on the results of the read across substance toxic effects of Fatty acids, C16-18 and C18-unsatd., ethyl esters (CAS 85049-36-1) to aquatic algae are not expected.
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