The molecule is a monocarboxylic acid anion resulting from the removal of a proton from the carboxy group of ketorolac. The major species at pH 7.3. It is a monocarboxylic acid anion and an amino-acid anion. It is a conjugate base of a ketorolac.
5-benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylate