C6 H4 O4 140.094 5-Formyl-2-furancarboxylic Acid N 0 Corina N 2025-06-19 9RG4 N 2026-03-27 PDBE REL 5-methanoylfuran-2-carboxylic acid; 5-Formyl-2-furoic Acid HETAIN A1JHS non-polymer O1 0 -43.429 -0.149 -37.929 1 N OAH A1JHS N 2.291 1.605 0.003 1 N O C1 0 -43.358 -1.399 -37.700 1 N CAF A1JHS N 2.085 0.273 0.000 2 N C O2 0 -44.227 -2.206 -38.190 1 N OAI A1JHS N 3.032 -0.488 -0.004 3 N O C2 0 -42.247 -1.983 -36.836 1 Y CAA A1JHS N 0.712 -0.260 0.001 4 N C O3 0 -40.894 -1.930 -37.035 1 Y OAE A1JHS N -0.414 0.475 -0.001 5 N O C3 0 -40.168 -2.627 -36.106 1 Y CAD A1JHS N -1.484 -0.343 0.001 6 N C C4 0 -38.642 -2.708 -35.982 1 N CAG A1JHS N -2.887 0.075 -0.000 7 N C O4 0 -38.076 -3.783 -35.964 1 N OAJ A1JHS N -3.168 1.256 -0.003 8 N O C5 0 -41.111 -3.122 -35.211 1 Y CAC A1JHS N -1.027 -1.646 0.004 9 N C C6 0 -42.382 -2.741 -35.699 1 Y CAB A1JHS N 0.371 -1.583 -0.002 10 N C H1 0 -44.182 0.030 -38.480 1 N H1 A1JHS N 3.209 1.908 0.002 11 N H H3 0 -40.910 -3.689 -34.314 1 N H3 A1JHS N -1.632 -2.540 0.006 12 N H H4 0 -43.324 -3.008 -35.243 1 N H4 A1JHS N 1.051 -2.421 -0.006 13 N H H2 0 -38.063 -1.799 -35.910 1 N H2 A1JHS N -3.672 -0.666 0.001 14 N H N 1 N doub N 2 N sing N 3 N sing Y 4 N sing Y 5 N sing Y 6 N doub N 7 N sing Y 8 N doub N 9 N doub Y 10 N sing N 11 N sing N 12 N sing N 13 N sing N 14 N sing PDBE PDBE RCSB InChI=1S/C6H4O4/c7-3-4-1-2-5(10-4)6(8)9/h1-3H,(H,8,9) SHNRXUWGUKDPMA-UHFFFAOYSA-N OC(=O)c1oc(C=O)cc1 OC(=O)c1oc(C=O)cc1 c1cc(oc1C=O)C(=O)O c1cc(oc1C=O)C(=O)O 5-methanoylfuran-2-carboxylic acid 5-methanoylfuran-2-carboxylic acid PDB 5-Formyl-2-furoic Acid AUTHOR