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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to microorganisms

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Administrative data

Link to relevant study record(s)

Description of key information

Based on a growth inhibition study with sewage microorganisms, the 16-hour NOEC for ethyl 3-ethoxypropanoate was determined to be 500 mg/L, while the 16 –hour IC50 for ethyl 3-ethoxypropanoate was determined to be > 5,000 mg/L. 

Key value for chemical safety assessment

EC50 for microorganisms:
5 000 mg/L
EC10 or NOEC for microorganisms:
500 mg/L

Additional information

One microorganism study with ethyl 3-ethoxypropanoate was available for review. Based on the available data which indicated that the study met generally accepted scientific principles, a Klimish score of 2 was assigned to this study. A 16- hour NOEC value of 500 mg/L and a 16-hour IC50 value of > 5,000 mg/L was reported for ethyl 3-ethoxypropanoate based on inhibition of microbial growth as measured by turbidity.