(S)-2-((S)-2-(((S)-1-carboxy-3-phenylpropyl)amino)propanoyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid; (3S)-2-[(2S)-2-[[(1S)-1-Carboxy-3-phenylpropyl]amino]-1-oxopropyl]-1,2,3,4-tetrahydro-3-isoquinolinecarboxylic Acid; Accuprin; CI-928; USP Quinapril Related Compound B; Quinapril EP Impurity C
