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EC number: 271-832-1 | CAS number: 68609-68-7 The complex combination of products produced by the distillation of products from a 2-ethyl-1-hexanol manufacturing process. It consists predominantly of organic compounds such as alcohols, aldehydes, esters, carboxylic acids and acetals having carbon numbers predominantly in the range of C4 through C16 and boiling in the range of 150°C to 308°C (302°F to 586°F).
The acute immobilization of the test item Zorgol 8 to Daphnia magna (STRAUS) was determined according to OECD 202 (2004). 20 test organisms were exposed for up to 48 hours in a static test system to the limit dose of 100 mg/L nominal. At start and end of the test the test subatnce concentration was determined based on DOC measurements. The measured concentrations were 40% and 37% of the nominal value at the start and after 48 hours of the test resulting in a geometric mean concentration of 38 mg/L. This value is considered as the water solubility of the test subatnce. Therefore, the determination of the biolagical results are based on the mean of the measured concentrations.
No significant effects to Daphnia magna up to the water solubility of the test substance (38 mg/L) was observed. The NOEC after 24 und 48 hours was determined to be 38 mg/L. The 24h and 48 h EC50 is clearly above the maximum tested concentration of 38 mg/L.
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