RESIDUE 1PK 23 CONECT N14 3 C11 H1 H2 CONECT C11 3 N14 N5 N7 CONECT N5 3 C11 C2 H3 CONECT N7 2 C11 C3 CONECT C3 3 N7 C8 C1 CONECT C8 3 C3 C13 H4 CONECT C13 3 C8 C10 H5 CONECT C10 3 C13 C4 H6 CONECT C4 3 C10 C1 C9 CONECT C1 3 C3 C4 C2 CONECT C9 3 C4 C12 H7 CONECT C12 3 C9 C6 H8 CONECT C6 3 C12 C2 H9 CONECT C2 3 N5 C1 C6 CONECT H1 1 N14 CONECT H2 1 N14 CONECT H3 1 N5 CONECT H4 1 C8 CONECT H5 1 C13 CONECT H6 1 C10 CONECT H7 1 C9 CONECT H8 1 C12 CONECT H9 1 C6 END HET 1PK 23 HETNAM 1PK 1H-perimidin-2-amine FORMUL 1PK C11 H9 N3