RESIDUE 2K1 15 CONECT O 1 C5 CONECT C5 3 O O1 C4 CONECT O1 2 C5 H1 CONECT C4 3 C5 C3 O2 CONECT C3 3 C4 C2 H2 CONECT C2 3 C3 C1 H3 CONECT O2 2 C4 C1 CONECT C1 3 C2 O2 C CONECT C 4 C1 H4 H5 H6 CONECT H1 1 O1 CONECT H2 1 C3 CONECT H3 1 C2 CONECT H4 1 C CONECT H5 1 C CONECT H6 1 C END HET 2K1 15 HETNAM 2K1 5-methylfuran-2-carboxylic acid FORMUL 2K1 C6 H6 O3