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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Classification & Labelling & PBT assessment

PBT assessment

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Administrative data

PBT assessment: overall result

PBT status:
the substance is not PBT / vPvB

Ethanethiol was not readily biodegradable in tests conducted in accordance with OECD guideline 301. It therefore meets the screening criteria for P/vP.

The substance has a reported log Kow of 1.5; no measured bioaccumulation data are available. On the basis of log Kow, it therefore does not meet the screening criteria for B/vB.

The lowest measured acute aquatic L(E)C50 for ethanethiol was <0.1 mg/L in a 48 hour Daphnia magna immobilisation study conducted according to OECD guideline 202; 0% immobilisation was observed at a nominal test concentration of 0.05 mg/L. The substance is not classified for CMR or Specific Target Organ Toxicity. It therefore does not meet the screening criteria for T.