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7-amino-3-[[(2,5-dihydro-6-hydroxy-2-methyl-5-oxo-1,2,4-triazin-3yl)thio]methyl]3-cephem-4-carboxylic acid CAS No.58909-56-1 / Cat No.EBD104722
(6R,7R)-7-氨基-3-(((2-甲基-5,6-二氧代-1,2,5,6-四氢-1,2,4-三嗪-3-基)硫代)甲基 )-8-氧代-5-硫杂-1-氮杂双环[4.2.0]辛-2-烯-2-羧酸 (头孢曲松杂质)
(6R,7R)-7-氨基-3-(((2-甲基-5,6-二氧代-1,2,5,6-四氢-1,2,4-三嗪-3-基)硫代)甲基 )-8-氧代-5-硫杂-1-氮杂双环[4.2.0]辛-2-烯-2-羧酸 (头孢曲松杂质)
7-氨基-3-[[((2,5-二氢-6-羟基-2-甲基-5-氧代-1,2,4-三嗪-3-基)硫代]甲基]头孢烷酸