RESIDUE 275 20 CONECT C1 4 C2 H11 H12 H13 CONECT C2 3 C1 C3 N8 CONECT C3 3 C2 C4 H3 CONECT C4 3 C3 C5 H4 CONECT C5 3 C4 N6 C7 CONECT N6 3 C5 H61 H62 CONECT C7 3 C5 N8 H7 CONECT N8 3 C2 C7 C9 CONECT C9 4 N8 H91 H92 H93 CONECT H11 1 C1 CONECT H12 1 C1 CONECT H13 1 C1 CONECT H3 1 C3 CONECT H4 1 C4 CONECT H61 1 N6 CONECT H62 1 N6 CONECT H7 1 C7 CONECT H91 1 C9 CONECT H92 1 C9 CONECT H93 1 C9 END HET 275 20 HETNAM 275 5-amino-1,2-dimethylpyridinium FORMUL 275 C7 H11 N2 1+