| —— | (6R,7S)‑benzhydryl‑7‑methoxy‑3‑((1‑methyl‑1H‑tetrazol‑5‑ylthio)methyl)‑8‑oxo‑7‑(2‑phenylacetamid‑o)‑5‑thia‑1‑aza‑bicyclo[4.2.0]oct‑2‑ene‑2‑carboxylate | 64278-77-9 | C32H30N6O5S2 | 642.759 | 
                                                                                                                                            
                                        | —— | (6R-cis)-7-amino-7-<(4-methylphenyl)thio>-3-<<(1-methyl-1H-tetrazol-5-yl)thio>methyl>-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylic acid diphenylmethyl ester | 64278-73-5 | C30H28N6O3S3 | 616.789 | 
                                                                                                                                            
                                        | 头孢替坦杂质 | (6R-cis)-7-amino-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-7-(methylthio)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid diphenylmethyl ester | 67366-04-5 | C24H24N6O3S3 | 540.691 | 
                                                                                                                                            
                                        | —— | 7-(4-nitrobenzalimino)-3-(1-methyl-1H-tetrazol-5-yl)thiomethyl-Δ3-cephem-4-carboxylic acid diphenylmethyl ester | 73711-24-7 | C30H25N7O5S2 | 627.704 | 
                                                                                                                                            
                                        | —— | (6R,7R)-benzhydryl 3-(((1-methyl-1H-tetrazol-5-yl)thio)methyl)-8-oxo-7-((p-tolylthio)amino)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate | 64278-66-6 | C30H28N6O3S3 | 616.789 | 
                                                                                                                                            
                                        | 二苯基甲基(6R,7R)-7-氨基-3-{[(1-甲基-1H-四唑-5-基)硫基]甲基}-8-氧代-5-硫杂-1-氮杂双环[4.2.0]辛-2-烯-2-羧酸酯 | 7β-amino-3-<<(1-methyl-1H-tetrazol-5-yl)thio>methyl>ceph-3-em-4-oic acid benzhydryl ester | 53090-86-1 | C23H22N6O3S2 | 494.598 | 
                                                                                                                                            
                                        | 头孢美唑杂质 | (R)-7-methylsulfanylimino-3-(1-methyl-1H-tetrazol-5-ylsulfanylmethyl)-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester | 64278-70-2 | C24H22N6O3S3 | 538.675 |