Bicyclo[4.2.0]

36923-21-4
36923-21-4
229034
头孢布烯母核
400827-55-6
400827-55-6
234478
4-[2-[[(6R,7R)-2-羧基-7-[[(2Z)-(乙氧基亚氨基)[5-(膦酰氨基)-1,2,4-噻二唑-3-基]乙酰基]氨基]-8-氧代-5-硫杂-1-氮杂双环[4.2.0]辛-2-烯-3-基]硫基]-4-噻唑基]-1-甲基吡啶乙酸盐水合物
32510-61-5
32510-61-5
274690
头孢唑啉杂质D
146794-70-9
146794-70-9
276219
苯甘孢霉素杂质E
56842-77-4
56842-77-4
2379691
(6R)-3-methyl-8-oxo-7t-(2-tetrazol-1-yl-acetylamino)-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid
105889-80-3
105889-80-3
308854
叔丁氧羰基头孢卡品酯
79350-10-0
79350-10-0
313148
头孢地尼相关化合物B
82549-51-7
82549-51-7
318744
头孢特仑母核
79368-95-9
79368-95-9
319124
头孢克肟杂质F
74356-00-6
74356-00-6
319460
头孢替坦二钠
167271-60-5
167271-60-5
351430
Imidazo[1,2-b]pyridazinium,1-[[(6R,7R)-7-amino-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl]-,inner salt
54333-94-7
54333-94-7
556444
(6R-cis)-3-(hydroxymethyl)-7-methoxy-8-oxo-7-(2-thienylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid