Final answer:
The molecule with the formula SH is called a thiol, and it is named using the -thiol suffix.
Step-by-step explanation:
The molecule with the formula SH is called a thiol. Thiol is a functional group that consists of a sulfur atom bonded to a hydrogen atom. Thiol compounds are named using the -thiol suffix. For example, CH3-SH is called methanethiol and CH3CH2-SH is called ethanethiol.