data_COU
#

_chem_comp.id                                   COU
_chem_comp.name                                 COUMARIN
_chem_comp.type                                 NON-POLYMER
_chem_comp.pdbx_type                            HETAIN
_chem_comp.formula                              "C9 H6 O2"
_chem_comp.mon_nstd_parent_comp_id              ?
_chem_comp.pdbx_synonyms                        2H-1-BENZOPYRAN-2-ONE
_chem_comp.pdbx_formal_charge                   0
_chem_comp.pdbx_initial_date                    2005-03-09
_chem_comp.pdbx_modified_date                   2021-03-01
_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                       146.143
_chem_comp.one_letter_code                      ?
_chem_comp.three_letter_code                    COU
_chem_comp.pdbx_model_coordinates_details       ?
_chem_comp.pdbx_model_coordinates_missing_flag  N
_chem_comp.pdbx_ideal_coordinates_details       ?
_chem_comp.pdbx_ideal_coordinates_missing_flag  N
_chem_comp.pdbx_model_coordinates_db_code       1Z10
_chem_comp.pdbx_subcomponent_list               ?
_chem_comp.pdbx_processing_site                 RCSB
#   #
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.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
COU  C1  C1  C  0  1  Y  N  N  65.304  77.585   99.518  -2.044   0.229  -0.001  C1  COU   1  
COU  C2  C2  C  0  1  Y  N  N  65.173  76.145   99.401  -1.878  -1.173   0.004  C2  COU   2  
COU  C3  C3  C  0  1  Y  N  N  66.144  75.301   99.828  -0.630  -1.705  -0.001  C3  COU   3  
COU  C4  C4  C  0  1  Y  N  N  67.387  75.799  100.432   0.513  -0.787  -0.001  C4  COU   4  
COU  C5  C5  C  0  1  Y  N  N  68.452  74.974  100.908   1.826  -1.270  -0.001  C5  COU   5  
COU  C6  C6  C  0  1  Y  N  N  69.606  75.534  101.475   2.871  -0.390   0.000  C6  COU   6  
COU  C7  C7  C  0  1  Y  N  N  69.726  76.959  101.582   2.640   0.978   0.001  C7  COU   7  
COU  C8  C8  C  0  1  Y  N  N  68.683  77.799  101.114   1.354   1.474   0.001  C8  COU   8  
COU  C9  C9  C  0  1  Y  N  N  67.519  77.211  100.544   0.276   0.598   0.000  C9  COU   9  
COU  O1  O1  O  0  1  N  N  N  64.473  78.402   99.162  -3.169   0.694  -0.001  O1  COU  10  
COU  O2  O2  O  0  1  Y  N  N  66.486  78.077  100.090  -0.992   1.063  -0.001  O2  COU  11  
COU  H2  H2  H  0  1  N  N  N  64.283  75.663   98.961  -2.743  -1.820   0.004  H2  COU  12  
COU  H3  H3  H  0  1  N  N  N  65.926  74.228   99.686  -0.483  -2.775  -0.002  H3  COU  13  
COU  H5  H5  H  0  1  N  N  N  68.381  73.875  100.835   2.012  -2.334  -0.001  H5  COU  14  
COU  H6  H6  H  0  1  N  N  N  70.406  74.864  101.831   3.885  -0.763   0.000  H6  COU  15  
COU  H7  H7  H  0  1  N  N  N  70.627  77.412  102.027   3.477   1.661   0.002  H7  COU  16  
COU  H8  H8  H  0  1  N  N  N  68.775  78.895  101.192   1.185   2.541   0.001  H8  COU  17  
#   #
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
COU  C1  C2  SING  Y  N   1  
COU  C1  O1  DOUB  N  N   2  
COU  C1  O2  SING  Y  N   3  
COU  C2  C3  DOUB  Y  N   4  
COU  C2  H2  SING  N  N   5  
COU  C3  C4  SING  Y  N   6  
COU  C3  H3  SING  N  N   7  
COU  C4  C5  DOUB  Y  N   8  
COU  C4  C9  SING  Y  N   9  
COU  C5  C6  SING  Y  N  10  
COU  C5  H5  SING  N  N  11  
COU  C6  C7  DOUB  Y  N  12  
COU  C6  H6  SING  N  N  13  
COU  C7  C8  SING  Y  N  14  
COU  C7  H7  SING  N  N  15  
COU  C8  C9  DOUB  Y  N  16  
COU  C8  H8  SING  N  N  17  
COU  C9  O2  SING  Y  N  18  
#   #
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
COU  SMILES            ACDLabs               10.04  O=C2Oc1ccccc1C=C2  
COU  SMILES_CANONICAL  CACTVS                3.341  O=C1Oc2ccccc2C=C1  
COU  SMILES            CACTVS                3.341  O=C1Oc2ccccc2C=C1  
COU  SMILES_CANONICAL  "OpenEye OEToolkits"  1.5.0  "c1ccc2c(c1)C=CC(=O)O2"  
COU  SMILES            "OpenEye OEToolkits"  1.5.0  "c1ccc2c(c1)C=CC(=O)O2"  
COU  InChI             InChI                 1.03   "InChI=1S/C9H6O2/c10-9-6-5-7-3-1-2-4-8(7)11-9/h1-6H"  
COU  InChIKey          InChI                 1.03   ZYGHJZDHTFUPRJ-UHFFFAOYSA-N  
#   #
loop_
_pdbx_chem_comp_identifier.comp_id
_pdbx_chem_comp_identifier.type
_pdbx_chem_comp_identifier.program
_pdbx_chem_comp_identifier.program_version
_pdbx_chem_comp_identifier.identifier
COU  "SYSTEMATIC NAME"  ACDLabs               10.04  2H-chromen-2-one  
COU  "SYSTEMATIC NAME"  "OpenEye OEToolkits"  1.5.0  chromen-2-one     
#   #
loop_
_pdbx_chem_comp_audit.comp_id
_pdbx_chem_comp_audit.action_type
_pdbx_chem_comp_audit.date
_pdbx_chem_comp_audit.processing_site
COU  "Create component"   2005-03-09  RCSB  
COU  "Modify descriptor"  2011-06-04  RCSB  
COU  "Modify synonyms"    2021-03-01  PDBE  
#
_pdbx_chem_comp_synonyms.ordinal     1
_pdbx_chem_comp_synonyms.comp_id     COU
_pdbx_chem_comp_synonyms.name        2H-1-BENZOPYRAN-2-ONE
_pdbx_chem_comp_synonyms.provenance  ?
_pdbx_chem_comp_synonyms.type        ?
##
