Definition of thiophenol
1 : a mobile liquid mercaptan C6H5SH with a smell like garlic and with acid properties somewhat stronger than those of phenol that may be formed by the action of phosphorus pentasulfide on phenol but that is better synthesized by reduction of benzene-sulfonyl chloride —called also phenyl mercaptan
2 : an aromatic mercaptan (as thiophenol)
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Origin and Etymology of thiophenol
International Scientific Vocabulary thi- + phenol
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