Registration Dossier
Registration Dossier
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EC number: 241-669-0 | CAS number: 17686-39-4
Endpoint summary
Administrative data
Description of key information
Not expected to be toxic for aquatic life
Additional information
No experimental data is available on the target substance. The computational tool ECOSAR v2.0 has been used to predict toxicity to fish, daphnid and green algae. The effects are reported for short-term exposure, i.e. median lethal concentration LC50 and median effect concentration EC50. Based on the chemical structure, the target substance is attributed to the esters class.
Predicted value ECOSAR v2.0:
LC50 (fish, 96h) = 41.2 mg/L (class: esters)
LC50 (daphnid, 48h) = 90.5 mg/L (class: esters)
EC50 (green algae, 96h) = 41.8 mg/L (class: esters)
According to the predicted ecotoxicological values, the target substance is expected to have a potential for aquatic toxicity. Same behaviour is predicted for the similar substances. Based on the predictions done by the ECOSAR tool, 2-ethylhexyl cyanoacetate results however to be the most concerning substance. In particular, the EC50/LC50 predicted for this substance for fish, crustacea and aquatic plants are respectively 7.98, 15.1 and 5.57 mg/L. These values are very similar to those found experimentally, namely 19, 15.5 and 4.5 mg/L. This confirms the reliability of the predictions carried out with ECOSAR, therefore it is possible to assume that the estimated values found for the target substance are realistic.
Taking into account all this information and considering that the substance is expected to be readily biodegradable, no classification for aquatic toxicity is proposed according to the CLP Regulation (EC) No. 1272/2008.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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