RESIDUE 2ZX 14 CONECT N1 3 C2 H1 H2 CONECT C2 3 N1 C3 N9 CONECT C3 3 C2 C4 H3 CONECT C4 3 C3 CL5 N6 CONECT CL5 1 C4 CONECT N6 2 C4 C7 CONECT C7 3 N6 N8 N9 CONECT N8 3 C7 H4 H5 CONECT N9 2 C2 C7 CONECT H1 1 N1 CONECT H2 1 N1 CONECT H3 1 C3 CONECT H4 1 N8 CONECT H5 1 N8 END HET 2ZX 14 HETNAM 2ZX 6-chloropyrimidine-2,4-diamine FORMUL 2ZX C4 H5 Cl1 N4