butyl mercaptan
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bu´tyl mer`cap´tan
n. | 1. | (Chem.) A volatile liquid, C4H9.SH, having a strong odor like that of a skunk; also called butanethiol. All three isomers, normal, sec-, and tert-butanethiol possess the skunk odor. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.