RESIDUE 3QV 19 CONECT C1 3 O1 C2 C10 CONECT N1 1 C7 CONECT O1 2 C1 HO1 CONECT C2 3 C1 C3 H2 CONECT O2 1 C8 CONECT C3 3 C2 C4 H3 CONECT O3 2 C8 C9 CONECT C4 3 C3 C5 C9 CONECT C5 3 C4 C6 H5 CONECT C6 3 C5 C7 C8 CONECT C7 2 N1 C6 CONECT C8 3 O2 O3 C6 CONECT C9 3 O3 C4 C10 CONECT C10 3 C1 C9 H10 CONECT HO1 1 O1 CONECT H2 1 C2 CONECT H3 1 C3 CONECT H5 1 C5 CONECT H10 1 C10 END HET 3QV 19 HETNAM 3QV 7-hydroxy-2-oxo-2H-chromene-3-carbonitrile FORMUL 3QV C10 H5 N1 O3