Penicillin G

antibiotic

(2S,5R,6R)-6-[(2-phenylacetyl)amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

Loading 2D viewer...

About

The first widely used antibiotic, discovered by Alexander Fleming in 1928. Its beta-lactam ring disrupts bacterial cell wall synthesis.

Molecular Properties

Formula
C16H18N2O4S
Molecular Weight
334.39 g/mol
SMILES
CC1(C)S[C@@H]2[C@H](NC(=O)Cc3ccccc3)C(=O)N2[C@H]1C(=O)O