英文别名6t-amino-(5ar)-5a,6-dihydro-3H,4H-azeto[2,1-b]furo[3,4-d][1,3]thiazine-1,7-dione; D,L-7-Amino-desacetyl-cephalosporansaeure-; (5aR,6R)-6-Amino-5a,6-dihydroazeto[2,1-b]furo[3,4-d][1,3]thiazine-1,7(3H,4H)-dione; Cephalosporin Impurity B; 7-ACA Lactone; Cefazedone Related Impurity 12; Cefazedone Impurity 12; Ceftriaxone Impurity 23; 3H,7H-Azeto[2,1-b]furo[3,4-d][1,3]thiazine-1,7(4H)-dione, 6-amino-5a,6-dihydro-, (5aR,6R)- 
