The molecule is a member of guanidines, a L-arginine derivative, a beta-lactam, a monocarboxylic acid and a secondary alcohol. It derives from a proclavaminic acid. It is a tautomer of an amidinoproclavaminic acid zwitterion.
(2S,3R)-5-(diaminomethylideneamino)-3-hydroxy-2-(2-oxoazetidin-1-yl)pentanoic acid