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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

96h LC50 (Oncorhynchus mykiss) = 3.6 mg/L (nominal concentration, OECD 203)

Key value for chemical safety assessment

LC50 for freshwater fish:
3.6 mg/L

Additional information

Two short-term fish toxicity studies are available for C12-14AS TEA (CAS 90583-18-9). The key, GLP-compliant test was performed under semi-static conditions with rainbow trout (Oncorhynchus mykiss) according to OECD Guideline 203 (Wetton 1996). Mortality was determined after 24, 48, 72 and 96 hours of exposure to concentrations up to 18 mg/L of a 40% pure technical product (in water) corresponding to 7.2 mg a.i./L. No analytical measurements of test concentrations were available. The results showed that the 96-hour LC50 value was 3.6 mg a.i./L (nominal concentration).

The other non-GLP study available for C12-14AS TEA (CAS 90583-18-9) was performed with golden orfe (Leuciscus idus) in static conditions according to DIN 38412 - L15 (Richterich 2001). Mortality of fish was determined after 24 and 48 hours of exposure to concentrations up to 150 mg of a 42% test substance solution in water, equivalent to 63 mg a.i./L. Analytical verification of test concentrations is not available. The 48-hour LC50 was determined to be 9.2 mg a.i./L (nominal concentration).