ChEBI: Butropium is a carboxylic ester resulting from the formal condensation of the carboxy group of (2S)-3-hydroxy-2-phenylpropanoic acid with the hydroxy group of (3-endo)-8-(4-butoxybenzyl)-3-hydroxy-8-methyl-8-azoniabicyclo[3.2.1]octane. Its bromide salt is used as an antispasmodic drug. It has a role as a muscarinic antagonist and an antispasmodic drug. It is an aromatic ether, a carboxylic ester, a quaternary ammonium ion and a bridged compound.
