1-Ethoxy-2,3-difluoro-4-[trans-4-(trans-4-propylcyclohexyl)-cyclohexyl]-benzene

Endpoint summary

Description of key information

Short-term toxicity to fish

The test material does not possess acute toxic potential to fish up to the limit of solubility in water. The LC50 of the test material exceeds 99.4 mg/L (with solubilizer) and is clearly above the limit of water solubility, thus, it is considered to correspond to a nominal concentration of 100 mg/L.

 

Long-term toxicity to fish

The test material showed no toxic potential at concentrations at or above the water solubility. The NOEC was >= 0.02 mg/L, corresponding to 100 mg/L nominal concentration, and thus higher than the limit of water solubility.

 

Short-term toxicity to aquatic invertebrates

An aqueous solution of nominal 100 mg/L of the test item revealed no aquatic toxicity in the test system. The 48 hour EC50 for Daphnia magna exceeded the maximum solubility of the test material in reconstituted water (< 0.9 mg/L) and, thus, could not be determined in this test.

 

Long-term toxicity to aquatic invertebrates

At the saturated solution of the test item prepared with a nominal loading of 100 mg/L, no biologically or statistically significant effects on the reproductive performance of Daphnia magna were determined. Based on the nominal loading level of the test item, the No Observed Effect Concentration (NOEC) was 100 mg/L.

 

Toxicity to aquatic algae and cyanobacteria

The source substance of this read across revealed no toxic effect on the growth of algae after 72 h at a nominal concentration of 100.0 mg/L. Analytically, the 72 hours EC50 to algae could not be determined; it exceeded the maximum solubility of the test material in reconstituted water (< 0.005 mg/L).