Mercaptan Definition

Cysteine (L-cysteine, Cys, C) proteinogenic amino acid molecule

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Definition: Mercaptan is an organic sulfur compound composed of an alkyl or aryl group and a thiol group.
General formula: R-SH where R is an alkyl or aryl group.

Also Known As: thiol

Examples: The amino acid cysteine is a mercaptan.