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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

LC50 (96h) = 5 – 7 mg/L for Oncorhynchus mykiss 
Nevertheless this endpoint is not used for PNEC-calculation as PNEC-values are calculated on the basis of a HC5-approach.

Key value for chemical safety assessment

Additional information

The acute toxicity of alcohol ethoxylate (C9-11, < 2.5 EO, CAS 68439-46-3) to fish was investigated in a 96-hours study with rainbow trout (Oncorhynchus mykiss) under static conditions and without analytical monitoring (Rees and Reiff, 1979). In this test an LC50 (96h) in the range from 5 to 7 mg/L was determined.