data_A1EUI # _chem_comp.id A1EUI _chem_comp.name "5,6,7,8-tetramethoxy-2-(4-methoxyphenyl)chromen-4-one" _chem_comp.type non-polymer _chem_comp.pdbx_type HETAIN _chem_comp.formula "C20 H20 O7" _chem_comp.mon_nstd_parent_comp_id ? _chem_comp.pdbx_synonyms Tangeretin _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 2025-07-29 _chem_comp.pdbx_modified_date 2026-04-17 _chem_comp.pdbx_ambiguous_flag N _chem_comp.pdbx_release_status REL _chem_comp.pdbx_replaced_by ? _chem_comp.pdbx_replaces ? _chem_comp.formula_weight 372.369 _chem_comp.one_letter_code ? _chem_comp.three_letter_code A1EUI _chem_comp.pdbx_model_coordinates_details ? _chem_comp.pdbx_model_coordinates_missing_flag N _chem_comp.pdbx_ideal_coordinates_details Corina _chem_comp.pdbx_ideal_coordinates_missing_flag N _chem_comp.pdbx_model_coordinates_db_code 9W0U _chem_comp.pdbx_subcomponent_list ? _chem_comp.pdbx_processing_site PDBC _chem_comp.pdbx_pcm ? # loop_ _chem_comp_atom.comp_id _chem_comp_atom.atom_id _chem_comp_atom.alt_atom_id _chem_comp_atom.type_symbol _chem_comp_atom.charge _chem_comp_atom.pdbx_align _chem_comp_atom.pdbx_aromatic_flag _chem_comp_atom.pdbx_leaving_atom_flag _chem_comp_atom.pdbx_stereo_config _chem_comp_atom.pdbx_n_terminal_atom_flag _chem_comp_atom.pdbx_backbone_atom_flag _chem_comp_atom.pdbx_c_terminal_atom_flag _chem_comp_atom.model_Cartn_x _chem_comp_atom.model_Cartn_y _chem_comp_atom.model_Cartn_z _chem_comp_atom.pdbx_model_Cartn_x_ideal _chem_comp_atom.pdbx_model_Cartn_y_ideal _chem_comp_atom.pdbx_model_Cartn_z_ideal _chem_comp_atom.pdbx_component_atom_id _chem_comp_atom.pdbx_component_comp_id _chem_comp_atom.pdbx_ordinal A1EUI C10 C1 C 0 1 Y N N N N N 136.615 136.334 165.415 -2.721 1.102 -0.078 C10 A1EUI 1 A1EUI C13 C2 C 0 1 Y N N N N N 137.479 134.195 166.155 -2.917 -1.294 0.057 C13 A1EUI 2 A1EUI C15 C3 C 0 1 N N N N N N 138.000 138.415 165.717 -0.454 2.162 -0.127 C15 A1EUI 3 A1EUI C17 C4 C 0 1 Y N N N N N 141.475 138.593 167.268 2.883 0.463 -0.016 C17 A1EUI 4 A1EUI C20 C5 C 0 1 Y N N N N N 142.965 140.448 167.713 5.110 1.361 -0.047 C20 A1EUI 5 A1EUI C21 C6 C 0 1 Y N N N N N 143.645 138.194 168.257 4.769 -1.021 0.075 C21 A1EUI 6 A1EUI C22 C7 C 0 1 Y N N N N N 143.915 139.564 168.222 5.626 0.072 0.028 C22 A1EUI 7 A1EUI C24 C8 C 0 1 N N N N N N 140.402 133.239 166.302 -0.692 -3.322 -1.090 C24 A1EUI 8 A1EUI C26 C9 C 0 1 N N N N N N 136.485 132.394 167.370 -4.078 -2.863 1.415 C26 A1EUI 9 A1EUI C08 C10 C 0 1 Y N N N N N 137.789 136.960 165.857 -1.327 0.978 -0.064 C08 A1EUI 10 A1EUI C09 C11 C 0 1 Y N N N N N 138.803 136.198 166.439 -0.730 -0.292 0.011 C09 A1EUI 11 A1EUI C11 C12 C 0 1 Y N N N N N 138.648 134.821 166.593 -1.535 -1.424 0.071 C11 A1EUI 12 A1EUI C12 C13 C 0 1 Y N N N N N 136.462 134.956 165.579 -3.510 -0.035 -0.018 C12 A1EUI 13 A1EUI C14 C14 C 0 1 N N N N N N 140.180 138.101 166.758 1.422 0.671 -0.034 C14 A1EUI 14 A1EUI C16 C15 C 0 1 N N N N N N 139.285 138.940 166.218 0.944 1.943 -0.108 C16 A1EUI 15 A1EUI C18 C16 C 0 1 Y N N N N N 141.748 139.963 167.237 3.748 1.559 -0.069 C18 A1EUI 16 A1EUI C19 C17 C 0 1 Y N N N N N 142.427 137.708 167.779 3.405 -0.831 0.059 C19 A1EUI 17 A1EUI C23 C18 C 0 1 N N N N N N 134.585 137.505 165.745 -3.575 2.986 1.095 C23 A1EUI 18 A1EUI C25 C19 C 0 1 N N N N N N 135.247 134.031 163.760 -5.506 0.058 -1.309 C25 A1EUI 19 A1EUI C27 C20 C 0 1 N N N N N N 145.654 139.423 169.844 7.431 -1.469 0.133 C27 A1EUI 20 A1EUI O01 O1 O 0 1 N N N N N N 139.983 136.735 166.891 0.617 -0.401 0.023 O01 A1EUI 21 A1EUI O02 O2 O 0 1 N N N N N N 135.580 137.015 164.847 -3.298 2.331 -0.145 O02 A1EUI 22 A1EUI O03 O3 O 0 1 N N N N N N 139.650 134.091 167.163 -0.968 -2.659 0.145 O03 A1EUI 23 A1EUI O04 O4 O 0 1 N N N N N N 135.323 134.339 165.150 -4.866 0.077 -0.032 O04 A1EUI 24 A1EUI O05 O5 O 0 1 N N N N N N 137.321 132.847 166.306 -3.698 -2.405 0.116 O05 A1EUI 25 A1EUI O06 O6 O 0 1 N N N N N N 137.180 139.174 165.221 -0.917 3.289 -0.193 O06 A1EUI 26 A1EUI O07 O7 O 0 1 N N N N N N 145.101 140.046 168.686 6.969 -0.119 0.056 O07 A1EUI 27 A1EUI H1 H1 H 0 1 N N N N N N 143.172 141.508 167.687 5.780 2.208 -0.083 H1 A1EUI 28 A1EUI H2 H2 H 0 1 N N N N N N 144.380 137.510 168.655 5.174 -2.021 0.133 H2 A1EUI 29 A1EUI H3 H3 H 0 1 N N N N N N 141.171 132.713 166.886 -0.242 -4.294 -0.889 H3 A1EUI 30 A1EUI H4 H4 H 0 1 N N N N N N 139.730 132.504 165.835 -1.620 -3.459 -1.645 H4 A1EUI 31 A1EUI H5 H5 H 0 1 N N N N N N 140.885 133.843 165.519 -0.002 -2.718 -1.680 H5 A1EUI 32 A1EUI H6 H6 H 0 1 N N N N N N 136.452 131.294 167.369 -4.698 -3.754 1.320 H6 A1EUI 33 A1EUI H7 H7 H 0 1 N N N N N N 136.890 132.747 168.330 -3.184 -3.103 1.991 H7 A1EUI 34 A1EUI H8 H8 H 0 1 N N N N N N 135.469 132.791 167.232 -4.640 -2.081 1.926 H8 A1EUI 35 A1EUI H9 H9 H 0 1 N N N N N N 139.503 139.996 166.150 1.626 2.779 -0.152 H9 A1EUI 36 A1EUI H10 H10 H 0 1 N N N N N N 141.013 140.649 166.843 3.348 2.561 -0.128 H10 A1EUI 37 A1EUI H11 H11 H 0 1 N N N N N N 142.221 136.648 167.804 2.740 -1.681 0.104 H11 A1EUI 38 A1EUI H12 H12 H 0 1 N N N N N N 133.806 138.034 165.177 -2.645 3.128 1.646 H12 A1EUI 39 A1EUI H13 H13 H 0 1 N N N N N N 134.134 136.661 166.288 -4.033 3.956 0.899 H13 A1EUI 40 A1EUI H14 H14 H 0 1 N N N N N N 135.048 138.197 166.463 -4.257 2.374 1.684 H14 A1EUI 41 A1EUI H15 H15 H 0 1 N N N N N N 134.287 133.540 163.545 -6.584 0.156 -1.177 H15 A1EUI 42 A1EUI H16 H16 H 0 1 N N N N N N 135.323 134.959 163.174 -5.138 0.888 -1.912 H16 A1EUI 43 A1EUI H17 H17 H 0 1 N N N N N N 136.073 133.357 163.488 -5.285 -0.882 -1.813 H17 A1EUI 44 A1EUI H18 H18 H 0 1 N N N N N N 146.605 139.910 170.104 8.521 -1.480 0.147 H18 A1EUI 45 A1EUI H19 H19 H 0 1 N N N N N N 144.950 139.520 170.684 7.051 -1.931 1.044 H19 A1EUI 46 A1EUI H20 H20 H 0 1 N N N N N N 145.833 138.358 169.637 7.074 -2.026 -0.733 H20 A1EUI 47 # loop_ _chem_comp_bond.comp_id _chem_comp_bond.atom_id_1 _chem_comp_bond.atom_id_2 _chem_comp_bond.value_order _chem_comp_bond.pdbx_aromatic_flag _chem_comp_bond.pdbx_stereo_config _chem_comp_bond.pdbx_ordinal A1EUI C25 O04 SING N N 1 A1EUI O02 C10 SING N N 2 A1EUI O02 C23 SING N N 3 A1EUI O04 C12 SING N N 4 A1EUI O06 C15 DOUB N N 5 A1EUI C10 C12 DOUB Y N 6 A1EUI C10 C08 SING Y N 7 A1EUI C12 C13 SING Y N 8 A1EUI C15 C08 SING N N 9 A1EUI C15 C16 SING N N 10 A1EUI C08 C09 DOUB Y N 11 A1EUI C13 O05 SING N N 12 A1EUI C13 C11 DOUB Y N 13 A1EUI C16 C14 DOUB N N 14 A1EUI C24 O03 SING N N 15 A1EUI O05 C26 SING N N 16 A1EUI C09 C11 SING Y N 17 A1EUI C09 O01 SING N N 18 A1EUI C11 O03 SING N N 19 A1EUI C14 O01 SING N N 20 A1EUI C14 C17 SING N N 21 A1EUI C18 C17 DOUB Y N 22 A1EUI C18 C20 SING Y N 23 A1EUI C17 C19 SING Y N 24 A1EUI C20 C22 DOUB Y N 25 A1EUI C19 C21 DOUB Y N 26 A1EUI C22 C21 SING Y N 27 A1EUI C22 O07 SING N N 28 A1EUI O07 C27 SING N N 29 A1EUI C20 H1 SING N N 30 A1EUI C21 H2 SING N N 31 A1EUI C24 H3 SING N N 32 A1EUI C24 H4 SING N N 33 A1EUI C24 H5 SING N N 34 A1EUI C26 H6 SING N N 35 A1EUI C26 H7 SING N N 36 A1EUI C26 H8 SING N N 37 A1EUI C16 H9 SING N N 38 A1EUI C18 H10 SING N N 39 A1EUI C19 H11 SING N N 40 A1EUI C23 H12 SING N N 41 A1EUI C23 H13 SING N N 42 A1EUI C23 H14 SING N N 43 A1EUI C25 H15 SING N N 44 A1EUI C25 H16 SING N N 45 A1EUI C25 H17 SING N N 46 A1EUI C27 H18 SING N N 47 A1EUI C27 H19 SING N N 48 A1EUI C27 H20 SING N N 49 # loop_ _pdbx_chem_comp_descriptor.comp_id _pdbx_chem_comp_descriptor.type _pdbx_chem_comp_descriptor.program _pdbx_chem_comp_descriptor.program_version _pdbx_chem_comp_descriptor.descriptor A1EUI InChI InChI 1.06 "InChI=1S/C20H20O7/c1-22-12-8-6-11(7-9-12)14-10-13(21)15-16(23-2)18(24-3)20(26-5)19(25-4)17(15)27-14/h6-10H,1-5H3" A1EUI InChIKey InChI 1.06 ULSUXBXHSYSGDT-UHFFFAOYSA-N A1EUI SMILES_CANONICAL CACTVS 3.385 "COc1ccc(cc1)C2=CC(=O)c3c(OC)c(OC)c(OC)c(OC)c3O2" A1EUI SMILES CACTVS 3.385 "COc1ccc(cc1)C2=CC(=O)c3c(OC)c(OC)c(OC)c(OC)c3O2" A1EUI SMILES_CANONICAL "OpenEye OEToolkits" 2.0.7 "COc1ccc(cc1)C2=CC(=O)c3c(c(c(c(c3OC)OC)OC)OC)O2" A1EUI SMILES "OpenEye OEToolkits" 2.0.7 "COc1ccc(cc1)C2=CC(=O)c3c(c(c(c(c3OC)OC)OC)OC)O2" # _pdbx_chem_comp_identifier.comp_id A1EUI _pdbx_chem_comp_identifier.type "SYSTEMATIC NAME" _pdbx_chem_comp_identifier.program "OpenEye OEToolkits" _pdbx_chem_comp_identifier.program_version 2.0.7 _pdbx_chem_comp_identifier.identifier "5,6,7,8-tetramethoxy-2-(4-methoxyphenyl)chromen-4-one" # _pdbx_chem_comp_synonyms.ordinal 1 _pdbx_chem_comp_synonyms.comp_id A1EUI _pdbx_chem_comp_synonyms.name Tangeretin _pdbx_chem_comp_synonyms.provenance PUBCHEM _pdbx_chem_comp_synonyms.type ? # loop_ _pdbx_chem_comp_audit.comp_id _pdbx_chem_comp_audit.action_type _pdbx_chem_comp_audit.date _pdbx_chem_comp_audit.processing_site A1EUI "Create component" 2025-07-29 PDBC A1EUI "Initial release" 2026-04-22 RCSB #