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01 7-Amino-3-Nor-3-Cephem-4-Carboxylic Acid (1)
02 7-Amino-3-Vinyl-3-Cephem-4-Carboxylic Acid (1)
03 7-Phenyl acetamido-3-Hydroxy-3-Cephem-4-Carboxylic acid Diphenylmethyl ester , 3-OH3-OH (1)
01 Cephalosporin (3)
01 36923-17-8 (1)
02 54639-48-4 (1)
03 79349-82-9 (1)