英文别名(6R,7R)-7-[[2-amino-2-(cyclohexen-1-yl)acetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; (6r,7r)-7-{[amino(cyclohex-1-en-1-yl)acetyl]amino}-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; 4,5-Dihydro Cefradine Impurity; Cefradine Impurity 1; 4',5'-Dihydrocephradine; Cefradine Impurity 4 
