3mercaptopropanal

3-mercaptopropanal is an organic compound with the chemical formula HSCH2CH2CHO. It is a molecule containing both a thiol group (sulfhydryl group, -SH) and an aldehyde group (-CHO). This bifunctional nature makes it a reactive chemical intermediate. Due to the presence of the thiol group, it can participate in reactions typical of thiols, such as oxidation to disulfides or reaction with electrophiles. The aldehyde group undergoes reactions characteristic of aldehydes, including nucleophilic addition and oxidation.

The compound exists as a clear liquid. It is soluble in water and common organic solvents. 3-mercaptopropanal can be synthesized through various methods, often involving the manipulation of precursors containing either a thiol or an aldehyde functionality, or both. Its reactivity makes it useful in organic synthesis, particularly in the formation of heterocyclic compounds or as a building block for more complex molecules. Its specific applications are often found in research settings or as an intermediate in the production of specialized chemicals. Precautions should be taken when handling 3-mercaptopropanal due to its potential reactivity and odor.