The molecule is a monocarboxylic acid anion that is the conjugate base of perindopril, obtained by deprotonation of the hydroxy group; major species at pH 7.3. It is a conjugate base of a perindopril.
(2S,3aS,7aS)-1-[(2S)-2-[[(2S)-1-ethoxy-1-oxopentan-2-yl]amino]propanoyl]-2,3,3a,4,5,6,7,7a-octahydroindole-2-carboxylate