RESIDUE 2UF 25 CONECT O6A 1 C6 CONECT C6 3 O6A O6B C5 CONECT O6B 2 C6 H1 CONECT C5 4 C6 O5 C4 H2 CONECT O5 2 C5 H3 CONECT C4 4 C5 O4 C3 H4 CONECT O4 2 C4 H5 CONECT C3 4 C4 O3 C2 H6 CONECT O3 2 C3 H7 CONECT C2 4 C3 O2 C1 H8 CONECT O2 2 C2 H9 CONECT C1 4 C2 O1 H10 H11 CONECT O1 2 C1 H12 CONECT H1 1 O6B CONECT H2 1 C5 CONECT H3 1 O5 CONECT H4 1 C4 CONECT H5 1 O4 CONECT H6 1 C3 CONECT H7 1 O3 CONECT H8 1 C2 CONECT H9 1 O2 CONECT H10 1 C1 CONECT H11 1 C1 CONECT H12 1 O1 END HET 2UF 25 HETNAM 2UF L-gulonate FORMUL 2UF C6 H12 O7