Cat. Name CAS. Structure Purity
M022653 (2S,5R)-7-Oxo-1-azabicyclo[3.2.0]heptane-2-carboxy 112345-98-9 (2S,5R)-7-Oxo-1-azabicyclo[3.2.0]heptane-2-carboxylic acid (4-nitrophenyl)methyl ester ≥ 95%