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Names | |||
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Preferred IUPAC name
Benzenethiol[1] | |||
Other names
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Identifiers | |||
3D model (JSmol)
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506523 | |||
ChEBI | |||
ChEMBL | |||
ChemSpider | |||
ECHA InfoCard | 100.003.306 | ||
EC Number |
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PubChem CID
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RTECS number |
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UNII | |||
CompTox Dashboard (EPA)
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Properties | |||
C6H6S | |||
Molar mass | 110.17 g·mol−1 | ||
Appearance | Colorless liquid | ||
Odor | Unpleasant, pungent | ||
Density | 1.0766 g/mL | ||
Melting point | −15 °C (5 °F; 258 K) | ||
Boiling point | 169 °C (336 °F; 442 K) | ||
0.08%[2] | |||
Solubility | Most organic solvents; aqueous base | ||
Vapor pressure | 1 mmHg (18°C)[2] | ||
Acidity (pKa) | |||
-70.8·10−6 cm3/mol | |||
Hazards | |||
Occupational safety and health (OHS/OSH): | |||
Main hazards
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Toxic | ||
GHS labelling: | |||
![]() ![]() ![]() ![]() ![]() | |||
Danger | |||
H226, H300, H310, H314, H315, H330, H410 | |||
P210, P233, P240, P241, P242, P243, P260, P262, P264, P270, P271, P273, P280, P284, P301+P310, P301+P330+P331, P302+P350, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P320, P321, P322, P330, P332+P313, P361, P362, P363, P370+P378, P391, P403+P233, P403+P235, P405, P501 | |||
NFPA 704 (fire diamond) | |||
Flash point | 56 °C; 132 °F; 329 K[2] | ||
NIOSH (US health exposure limits): | |||
PEL (Permissible)
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none[2] | ||
REL (Recommended)
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C 0.1 ppm (0.5 mg/m3) [15-minute][2] | ||
IDLH (Immediate danger)
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N.D.[2] | ||
Related compounds | |||
Related thiols
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1,2-Benzenedithiol Benzenemethanethiol | ||
Related compounds
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Phenol Benzeneselenol Diphenyl disulfide | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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 . An exception is 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.
Thiophenols also describes a class of compounds formally derived from thiophenol itself. All have a sulfhydryl group (-SH) covalently bonded to an aromatic ring. The organosulfur ligand in the medicine thiomersal is a thiophenol.
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: CS1 maint: DOI inactive as of June 2024 (link)