The molecule is a monocarboxylic acid anion obtained by deprotonation of the carboxy and oxime OH groups of nocardicin E. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It has a role as an antimicrobial agent. It is a conjugate base of a nocardicin E(1-).
(2R)-2-[(3S)-3-[[(2Z)-2-hydroxyimino-2-(4-oxidophenyl)acetyl]amino]-2-oxoazetidin-1-yl]-2-(4-hydroxyphenyl)acetate