Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

The most sensitive organism regarding exposure to 2-ethylhexyl cyanoacetate (CAS 13361 -34 -7) was the aquatic green algae Desmodesmus subspicatus (72 -h ErC10 = 1.91 mg/L; 72 -h ErC50 = 4.5 mg/L).

Short-term toxicity to fish:

With high probability acutely harmful to fish.

Experimental data on the toxicity of 2-ethylhexyl cyanoacetate (CAS 13361 -34 -7) to fish are not available. Regarding the tonnage band (1 -1000 t/a, intermediate) a study on the short-term toxicity to fish is not required. However, in order to assess the acute toxicity to fish, QSAR models were used.

Based on the reliable calculated data from the estimation model US EPA T.E.S.T. v4.1 (96 -h LC50 = 12.7 mg/L), the substance is assessed to be with high probability acutely harmful to fish.

Long-term toxicity to fish:

No data available.

Short-term toxicity to aquatic invertebrates:

Acutely harmful to aquatic invertebrates.

The acute toxicity of 2-ethylhexyl cyanoacetate (CAS 13361-34-7) to aquatic invertebrates was tested according to EU Method C.2 (Acute Toxicity for Daphnia). The test was performed with Daphnia magna under static conditions. Based on measured test concentrations, the 48-h LC50 was determined to be 15.5 mg/L.

Long-term toxicity to aquatic invertebrates:

No data available.

Toxicity to aquatic algae and plants:

Acutely toxic to aquatic algae.

The toxicity of 2-ethylhexyl cyanoacetate (CAS 13361-34-7) to algae was tested according to EU Method C.3 (Algal Inhibition test). The test was performed with Desmodesmus supsicatus under static conditions. Based on measured test concentrations, the 72-h ErCC50 was determined to be 4.5 mg/L (72-h Er10: 1.91 mg/L).

Toxicity to microorganisms:

No data available.