C4H2OS
C4H2OS is the molecular formula for several chemical compounds, each with a unique arrangement of four carbon atoms, two hydrogen atoms, one oxygen atom, and one sulfur atom. One prominent isomer with this formula is thioglycolaldehyde. Thioglycolaldehyde is a relatively simple organic compound. It possesses both aldehyde and thiol functional groups, making it chemically reactive. It is known to exist in equilibrium with its cyclic dimer. This compound is of interest in organic synthesis and biochemistry due to its bifunctional nature.
Another possibility with the C4H2OS formula could be isomers of sulfur-containing cyclic compounds or more complex