4-(2-Chlorophenyl)-9-methyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine-2-propanoic Acid

3-[4-(2-chlorophenyl)-9-methyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-2-yl]propanoic acid is a thienotriazolodiazepine that is brotizolam in which the bromo group at position 2 is replaced by a 2-carboxyethyl group. It is a structural analogue of brotizolam. It has a role as a hapten. It is a monocarboxylic acid, a member of monochlorobenzenes and a thienotriazolodiazepine.