Registration Dossier
Registration Dossier
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EC number: 269-130-5 | CAS number: 68187-85-9
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The hazard assessment is based on the data currently available. New studies with the registered substance and/or other member substances of the glycol esters category will be conducted in the future. The finalised studies will be included in the technical dossier as soon as they become available and the hazard assessment will be re-evaluated accordingly.
For further details, please refer to the category concept document attached to the category object (linked under IUCLID section 0.2) showing an overview of the strategy for all substances within the glycol esters category.
Key value for chemical safety assessment
Additional information
The hazard assessment is based on the data currently available. New studies with the registered substance and/or other member substances of the glycol esters category will be conducted in the future. The finalised studies will be included in the technical dossier as soon as they become available and the hazard assessment will be re-evaluated accordingly.
For further details, please refer to the category concept document attached to the category object (linked under IUCLID section 0.2) showing an overview of the strategy for all substances within the glycol esters category.
No experimental data are available, testing the toxicity of fatty acids, tall-oil, esters with ethylene glycol (CAS 68187-85-9) towards algae. Therefore, read-across to the structurally related source fatty acids, C16-18, esters with ethylene glycol (CAS 91031-31-1) was performed in accordance with Regulation (EC) No 1907/2006 Annex XI, 1.5. The source substance is characterized by a similar fatty acid chain length as well as alcohol components and is therefore considered a suitable representative for the assessment of the toxicity of the target substance to algae.
The toxicity of the read across substance fatty acids, C16-18, esters with ethylene glycol (CAS 91031-31-1) towards algae was investigated according to DIN 38412-9 and GLP conditions (1994). The green algae Scenedesmus subspicatus was exposed to nominal concentrations of 10 and 100 mg/L (nominal) without a further filtration step. Slight effects on the growth rate of S. subspicatus were observed during the study resulting in an EC50 (72 h) > 100 mg/L (nominal) and an EC10 (72 h) of 34 mg/L (nominal).
Based on the results from the structurally related read-across substance, it is concluded that fatty acids, tall-oil, esters with ethylene glycol (CAS 68187-85-9) will not cause adverse effects to algae up to the limit of the water solubility.
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