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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Three independent O.E.C.D. test guideline 203 studies were conducted with the test substance, 2,3-epoxypropyl o-tolyl ether.  

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
2.8 mg/L

Additional information

Two independent O.E.C.D. test guideline 203, GLP studies were conducted with the rainbow trout with concentration verification. Based on measured concentrations the LC50 value from these two studies ranged from 2.8 - < 10 mg/L A third supporting O.E.C.D. test guideline 203 study was performed with the Zebra-Fish. Based upon estimated concentations of the test substance, the LC50 valued ranged from 5.5 - 8.0 mg/L (95% Confidence Limits). Therefore, the test substance, 2,3 -epoxypropylo-tolyl ether, is toxic to fish under the conditions of the studies.