. . . . . . . . . "Butyrylthiocholine"@en . . . . . "A sulfur-containing analog of butyrylcholine which is hydrolyzed by butyrylcholinesterase to butyrate and thiocholine. It is used as a reagent in the determination of butyrylcholinesterase activity. [PubChem]"@en . . . . . . . . . "experimental"@en . . . . . . . . . . . .