* Methanethiol – CHSH [methyl mercaptan]
* Ethanethiol – CHSH [ethyl mercaptan]
* 1-Propanethiol – CHSH [n-propyl mercaptan]
* 2-Propanethiol – CHCH(SH)CH [2C3 mercaptan]
* Allyl mercaptan CH=CHCHSH [2-propenethiol]
* Butanethiol – CHSH [n-butyl mercaptan]
* tert-Butyl mercaptan – (CH)CSH [t-butyl mercaptan]
* Pentanethiols – CHSH [pentyl mercaptan]
* Thiophenol – CHSH
* Dimercaptosuccinic acid
* Thioacetic acid
* Coenzyme A
* Glutathione
* Metallothionein
* Cysteine
* 2-Mercaptoethanol
* Dithiothreitol/dithioerythritol (an epimeric pair)
* 2-Mercaptoindole
* Grapefruit mercaptan
* Furan-2-ylmethanethiol
* 3-Mercaptopropane-1,2-diol
* 3-Mercapto-1-propanesulfonic acid
* 1-Hexadecanethiol
* Pentachlorobenzenethiol