RESIDUE 2DI 29 CONECT N9 3 C4 C8 C1' CONECT C4 3 N9 N3 C5 CONECT N3 2 C4 C2 CONECT C2 3 N3 N1 H2 CONECT N1 3 C2 C6 HN1 CONECT C6 3 N1 O6 C5 CONECT O6 1 C6 CONECT C5 3 C4 C6 N7 CONECT N7 2 C5 C8 CONECT C8 3 N9 N7 H8 CONECT C5' 4 O5' C4' H5'1 H5'2 CONECT O5' 2 C5' H5' CONECT C4' 4 C5' O4' C3' H4' CONECT O4' 2 C4' C1' CONECT C1' 4 N9 O4' C2' H1' CONECT C2' 4 C1' C3' H2'1 H2'2 CONECT C3' 4 C4' C2' H3'1 H3'2 CONECT H2 1 C2 CONECT HN1 1 N1 CONECT H8 1 C8 CONECT H5'1 1 C5' CONECT H5'2 1 C5' CONECT H5' 1 O5' CONECT H4' 1 C4' CONECT H1' 1 C1' CONECT H2'1 1 C2' CONECT H2'2 1 C2' CONECT H3'1 1 C3' CONECT H3'2 1 C3' END HET 2DI 29 HETSYN 2DI 2',3'-DIDEOXYINOSINE; Didanosine HETNAM 2DI 9-[(2R,5R)-5-(HYDROXYMETHYL)TETRAHYDROFURAN-2-YL]-1,9-D HETNAM 2 2DI IHYDRO-6H-PURIN-6-ONE FORMUL 2DI C10 H12 N4 O3