The molecule is a penicillin compound having a 6beta-(phenoxyacetyl)amino side-chain. It is a penicillin allergen and a penicillin. It is a conjugate acid of a phenoxymethylpenicillin(1-).
(2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(2-phenoxyacetyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid