define thiols
Thiol with a blue-highlighted sulfhydryl group. In organic chemistry, a thiol (/ËÎ¸aÉªËÉËl/ , /ËÎ¸aÉªËÉl/) is an organosulfur compound that contains a carbon-bonded sulfhydryl (âCâSH or RâSH) group (where R represents an alkane, alkene, or other carbon-containing group of atoms).