>CAPTAN is a fungicide (kills rot) used on fruit crops, and is added to gas
>to give it an odor.
This is a confusion of a common or commercial name Captan for a
particular synthetic compound with the word MERCAPTAN (= thiol =
sulfhydryl) for a class of compounds containing the -SH pair of atoms. It
is small molecules of this latter class that are added to natural gas and
LPG to assist leak detection by scent. The proprietary fungicide CaptanŽ
is not added to gas.
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