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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

96h LC50 (Danio rerio, mortality) = 1.3 mg/L (nominal concentration, OECD 203) 

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
1.3 mg/L

Additional information

Toxicity of C12-18 AS Na (CAS 68955-19-1) to fish was investigated in a key GLP, flow-through study according to OECD guideline 203 with Danio rerio (van Egmond 1993). The 96-hour LC50 value was 1.3 mg/L (nominal concentration). The measured concentrations were in line with the nominal concentrations.

A supporting study was preformed according to EU Method C1 (Scholz 1997). In this semi-static test with the carp Cyprinus carpio, a LC50 96-h value of 17 mg a.i./L was measured. Further investigations on the toxicity of C12-18AS Na (CAS 68955-19-1) were carried out in a non-GLP study according to OECD guideline 203, with the golden orfe Leuciscus idus (Richterich 2004). In this study a LC50 48-h value of 9.3 mg a.i./L (nominal) was determined. Finally, a non-GLP study by Kamp (1992) was performed according to DIN 38412 (15) with golden orfes. A 48-h LC50 value was 16 mg a.i./L (nominal).