The molecule is an L-lysine derivative obtained from nucleophilic cleavage of the beta-lactam ring of piperacillin by the epsilon-amino group of the L-lysine molecule. It contains a piperacilloyl group. It derives from a piperacillin.
(2R,4S)-2-[(1R)-2-[[(5S)-5-amino-5-carboxypentyl]amino]-1-[[(2R)-2-[(5-ethyl-2,3-dioxopiperazine-1-carbonyl)amino]-2-phenylacetyl]amino]-2-oxoethyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid