525-97-3

penicillin K Penicillin A Heptylpenicillin Octanoylpenicillin Benzylpenicillin Impurity 25 3,3-dimethyl-6-octanamido-7-oxo-4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid (2S,5β)-3,3-Dimethyl-7-oxo-6α-octanoylamino-4-thia-1-azabicyclo[3.2.0]heptane-2β-carboxylic acid (2S,5β)-3,3-Dimethyl-7-oxo-6α-[(1-oxooctyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2β-carboxylic acid 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-[(1-oxooctyl)amino]-, (2S,5R,6R)-