"ethyl mercaptan." YourDictionary, n.d. Web. 15 January 2019. <https://www.yourdictionary.com/ethyl-mercaptan>.
ethyl mercaptan. (n.d.). Retrieved January 15th, 2019, from https://www.yourdictionary.com/ethyl-mercaptan
A colorless organic liquid that has a very strong odor. It is added to odorless fuel, such as natural gas, and fuel systems as a warning agent in the event of leakage or spills. Also called ethanethiol. Chemical formula:C2H6S.