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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

2-mercaptoethanol is acutely harmful to fish.

Key value for chemical safety assessment

LC50 for freshwater fish:
37 mg/L

Additional information

In a non-GLP, 96-hour static test with the golden orfe Leuciscus idus according to a national standard method (DIN 38412 part 15), the toxicity of 2 -mercaptoethanol to fish was investigated. Statistical evaluation revealed a LC50 (96h) of 37 mg/l, related to the arithmetic mean of the measured concentrations.