2508-89-6 A 10270A Acetyl-don Diazomycin A Duazomycin A L-Norleucine, N-acetyl-6-diazo-5-oxo- (9CI) N-Acetyl-6-diazo-5-oxo-L-norleucine NSC 51097 Norleucine, N-acetyl-6-diazo-5-oxo-, L-