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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

Pimephales Promelas: LC50(96hrs) >10000mg/l.

Carrassius auratus: LC50(24 hrs) >5000mg/l.

Danio rerio (Embryotoxicity test, 96hrs), NOEC>1780mg/L (for substance and main metabolite)

Key value for chemical safety assessment

LC50 for freshwater fish:
10 000 mg/L

Additional information

A limited number of acute toxicity studies are available in fish. These clearly show that the substance 2-(2-(2-ethoxyyethoxy)ethoxy)ethanol is practically non-toxic to fish. The LD50 was always in excess of the maximum tested dose. A figure of 10000mg/L is appropriate. The substance has also been tested in the zebrafish embryotoxicity test and showed neither it or its main metabolite 2 -(2 -(2 -ethoxyethoxy)ethoxy) acetic acid showed any toxicity up to the maximum tested dose of 10mM (1780mg/L).