RESIDUE 4SD 14 CONECT C1 4 C2 C4 O1 H1 CONECT C2 4 C1 C3 H2 H3 CONECT C5 2 C4 N2 CONECT C4 4 C1 C5 H4 H5 CONECT C3 2 C2 N1 CONECT N2 1 C5 CONECT O1 2 C1 H6 CONECT N1 1 C3 CONECT H1 1 C1 CONECT H2 1 C2 CONECT H3 1 C2 CONECT H4 1 C4 CONECT H5 1 C4 CONECT H6 1 O1 END HET 4SD 14 HETNAM 4SD 3-hydroxypentanedinitrile FORMUL 4SD C5 H6 N2 O1