Registration Dossier
Registration Dossier
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EC number: 292-932-1 | CAS number: 91031-31-1
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 current data available. Based on the ECHA decision on a compliance check (decision number CCH-D-2114551285-49-01/F) from 14 April 2021 a growth inhibition study aquatic plants (OECD 201) is requested. The finalised study will be included into the dossier and the aquatic toxicity will be re-evaluated in the update of this dossier latest by 22 July 2024.
Key value for chemical safety assessment
Additional information
The hazard assessment is based on the current data available. Based on the ECHA decision on a compliance check (decision number CCH-D-2114551285-49-01/F) from 14 April 2021 a growth inhibition study aquatic plants (OECD 201) is requested. The finalised study will be included into the dossier and the aquatic toxicity will be re-evaluated in the update of this dossier latest by 22 July 2024.
The toxicity of fatty acids, C16-18, esters with ethylene glycol (CAS 91031-31-1) was investigated according to DIN 38412-9 under GLP conditions (Stelter, 1994). The green algae Scenedesmus subspicatus was exposed to nominal concentrations of 10 and 100 mg/L without a further filtration step. No inhibition of growth of S. subspicatus up to the limit of water solubility was observed resulting in an EC50 > 100 mg/L. An EC10 of 34 mg/L was determined since growth stimulation was observed in both concentrations used in this study. No inhibition of growth was observed. It can be concluded that fatty acids, C16-18, esters with ethylene glycol will not exhibit effects to aquatic algae up to the limit of water solubility.
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