| Name | SMILES | Flavor type | Data resource |
|---|---|---|---|
| Potassium guaiacolsulfonate | O=S(=O)([O-])c1ccccc1OCO.[K+] | Bitter | BitterSweet, BitterDB, ChemTasteDB |
| Sulfur dioxide | O=S=O | Bitter | BitterSweet, BitterDB, ChemTasteDB |
| Sodium N-(4-chloro-2-nitrophenyl)sulfamate | O=[N+]([O-])c1cc(Cl)ccc1NS(=O)(=O)[O-].[Na+] | Bitter | ChemTasteDB |
| Sodium N-(4-fluoro-2-nitrophenyl)sulfamate | O=[N+]([O-])c1cc(F)ccc1NS(=O)(=O)[O-].[Na+] | Bitter | ChemTasteDB |
| Ammonium picrate | O=[N+]([O-])c1cc([N+](=O)[O-])c([O-])c([N+](=O)[O-])c1.[NH4+] | Bitter | BitterSweet, BitterDB, ChemTasteDB |
| Sodium N-(5-chloro-2-nitrophenyl)sulfamate | O=[N+]([O-])c1ccc(Cl)cc1NS(=O)(=O)[O-].[Na+] | Bitter | ChemTasteDB |
| Sodium N-(2-chloro-4-nitrophenyl)sulfamate | O=[N+]([O-])c1ccc(NS(=O)(=O)[O-])c(Cl)c1.[Na+] | Bitter | ChemTasteDB |
| Sodium N-[4-(4-nitrobenzenesulfonyl)phenyl]sulfamate | O=[N+]([O-])c1ccc(S(=O)(=O)c2ccc(NS(=O)(=O)[O-])cc2)cc1.[Na+] | Bitter | ChemTasteDB |
| Sodium N-(6-nitro-1,3-benzothiazol-2-yl)sulfamate | O=[N+]([O-])c1ccc2nc(NS(=O)(=O)[O-])sc2c1.[Na+] | Bitter | ChemTasteDB |
| Sodium nitrobenzene sulfonate | O=[N+]([O-])c1cccc(S(=O)(=O)[O-])c1.[Na+] | Bitter | ChemTasteDB |
| m-Nitrobenzene | O=[N+]([O-])c1cccc([N+](=O)[O-])c1 | Bitter | BitterSweet, ChemTasteDB |
| 1-Nitronaphthalene | O=[N+]([O-])c1cccc2ccccc12 | Bitter | BitterSweet, BitterDB, ChemTasteDB |
| 2-Nitro phenyl beta-D-glucopyranoside | O=[N+]([O-])c1ccccc1OC1OC(CO)C(O)C(O)C1O | Bitter | BitterDB, ChemTasteDB |
| Xanthine | O=c1[nH]c(=O)c2[nH]cnc2[nH]1 | Bitter | PlantMolecularTasteDB, BitterDB, ChemTasteDB |
| 7,3',4'-Trihydroxyisoflavone | O=c1c(-c2ccc(O)c(O)c2)coc2cc(O)ccc12 | Bitter | Natural_TAS2R_agonists, BitterSweet, BitterDB, ChemTasteDB |
| 7,8,4'-Trihydroxyisoflavone | O=c1c(-c2ccc(O)cc2)coc2c(O)c(O)ccc12 | Bitter | BitterSweet, PlantMolecularTasteDB, BitterDB, ChemTasteDB |
| 6,7,4'-Trihydroxyisoflavone | O=c1c(-c2ccc(O)cc2)coc2cc(O)c(O)cc12 | Bitter | BitterSweet, PlantMolecularTasteDB, BitterDB, ChemTasteDB |
| Daidzin | O=c1c(-c2ccc(O)cc2)coc2cc(OC3O[C@H](CO)[C@@H](O)[C@H](O)[C@H]3O)ccc12 | Bitter | BitterSweet |
| 7-Hydroxyisoflavone | O=c1c(-c2ccccc2)coc2cc(O)ccc12 | Bitter | BitterSweet, PlantMolecularTasteDB, BitterDB, ChemTasteDB |
| Isoflavone | O=c1c(-c2ccccc2)coc2ccccc12 | Bitter | Natural_TAS2R_agonists, BitterSweet, BitterDB, ChemTasteDB |
| Dicumarol | O=c1c(Cc2c(O)oc3ccccc3c2=O)c(O)oc2ccccc12 | Bitter | BitterSweet |
| Gossypetin | O=c1c(O)c(-c2ccc(O)c(O)c2)oc2c(O)c(O)cc(O)c12 | Bitter | ChemTasteDB, PhytoMolecularTasteDB, Natural_TAS2R_agonists, PlantMolecularTasteDB, BitterDB, BitterSweet |
| Quercetagetin | O=c1c(O)c(-c2ccc(O)c(O)c2)oc2cc(O)c(O)c(O)c12 | Bitter | ChemTasteDB, PhytoMolecularTasteDB, Natural_TAS2R_agonists, PlantMolecularTasteDB, BitterDB, BitterSweet |
| Fisetin | O=c1c(O)c(-c2ccc(O)c(O)c2)oc2cc(O)ccc12 | Bitter | ChemTasteDB, PhytoMolecularTasteDB, Natural_TAS2R_agonists, PlantMolecularTasteDB, BitterDB, BitterSweet |
| 3,6,3,4-Tetrahydroxyflavone | O=c1c(O)c(-c2ccc(O)c(O)c2)oc2ccc(O)cc12 | Bitter | BitterSweet, BitterDB, ChemTasteDB |
| Herbacetin | O=c1c(O)c(-c2ccc(O)cc2)oc2c(O)c(O)cc(O)c12 | Bitter | ChemTasteDB, PhytoMolecularTasteDB, Natural_TAS2R_agonists, PlantMolecularTasteDB, BitterDB, BitterSweet |
| 3,7,4-Trihydroxyflavone | O=c1c(O)c(-c2ccc(O)cc2)oc2cc(O)ccc12 | Bitter | BitterSweet, BitterDB, ChemTasteDB |
| trihydroxyflavone | O=c1c(O)c(-c2ccccc2)oc2ccc(O)c(O)c12 | Bitter | PhytoMolecularTasteDB |
| dihydroxyflavone | O=c1c(O)c(-c2ccccc2)oc2cccc(O)c12 | Bitter | PhytoMolecularTasteDB |
| flavonol | O=c1c(O)c(-c2ccccc2)oc2ccccc12 | Bitter | Natural_TAS2R_agonists, PlantMolecularTasteDB |