thiophenol

Thiophenol, also known as phenyl mercaptan, is a mobile liquid with a garlic-like smell. It is an aromatic mercaptan and possesses acidic properties, though weaker than phenol. Thiophenol can be synthesized by reducing benzene-sulfonyl chloride.1

Thiols, which are sulfur analogs of alcohols, are sometimes called mercaptans. Lower-molecular-weight thiols often have strong, unpleasant odors, but at very low concentrations, some can be pleasant. Due to their distinct smells, thiols are used as odorants for natural gas leaks. They also have applications in rubber vulcanization, corrosion inhibition, and even cancer therapy.23