Thiophenol is an organosulfur compound with the formula C6H5SH, sometimes abbreviated as PhSH. This foul-smelling colorless liquid is the simplest aromatic thiol. The chemical structures of thiophenol and its derivatives are analogous to phenols except the oxygen atom in the hydroxyl group (-OH) bonded to the aromatic ring is replaced by a sulfur atom. The prefix thio- implies a sulfur-containing compound and when used before a root word name for a compound which would normally contain an oxygen atom, in the case of thiol that the alcohol oxygen atom is replaced by a sulfur atom.
|Melting point||−15 °C (5 °F; 258 K)|
|Boiling point||169 °C (336 °F; 442 K)|
|Solubility in water||0.08%|
|Solubility||Most organic solvents; aqueous base|
|Vapor pressure||1 mmHg (18°C)|
|Magnetic susceptibility (χ)||-70.8·10−6 cm3/mol|