RESIDUE 4KR 30 CONECT C 4 C1 H HA HB CONECT C1 3 C O2 O3 CONECT S1 2 C2 C6 CONECT C2 4 S1 C3 H2 H2A CONECT O2 1 C1 CONECT C3 3 C2 C4 C13 CONECT O3 2 C1 C13 CONECT C4 3 C3 N5 C10 CONECT O4 2 C10 HO4 CONECT N5 3 C4 C6 C8 CONECT O5 1 C10 CONECT C6 4 S1 N5 C7 H6 CONECT C7 4 C6 C8 N14 H7 CONECT C8 3 N5 C7 O9 CONECT O9 1 C8 CONECT C10 3 C4 O4 O5 CONECT C13 4 C3 O3 H13 H13A CONECT N14 3 C7 HN14 HN1A CONECT H 1 C CONECT HA 1 C CONECT HB 1 C CONECT H2 1 C2 CONECT H2A 1 C2 CONECT HO4 1 O4 CONECT H6 1 C6 CONECT H7 1 C7 CONECT H13 1 C13 CONECT H13A 1 C13 CONECT HN14 1 N14 CONECT HN1A 1 N14 END HET 4KR 30 HETSYN 4KR (6R,7R)-3-[(acetyloxy)methyl]-7-amino-8-oxo-5-thia-1-az HETSYN 2 4KR abicyclo[4.2.0]oct-2-ene-2-carboxylic acid HETNAM 4KR 7-aminocephalosporanic acid FORMUL 4KR C10 H12 N2 O5 S1