(3S,4R)-3-[(1R)-1-Hydroxyethyl]-4-[(1R)-1-methyl-3-diazo-3-(p-nitrobenzyloxycarbonyl)-2-oxopropyl]azetidin-2-one

(1)Molecular Formula: C17H18N4O7
(2)Molecular Weight: 390.35
(3)purity: 98%(HPLC)