This standard specifies the technical requirements, test methods, inspection rules, packaging, marking, storage and transportation requirements for the pharmaceutical intermediate 7-amino-3-deacetoxycephalosporanic acid (7-ADCA). This standard applies to the pharmaceutical intermediate 7-amino-3-deacetoxycephalosporanic acid (7-ADCA), which uses penicillin potassium as raw material, is converted into 3-deacetoxycephalosporin through ring expansion, and then cleaved into ), mainly used as an intermediate for semi-synthetic cephalosporins.