1.0 2010-04-08 22:12:38 UTC 2025-11-19 01:49:42 UTC FDB016777 Procyanidin A1 Procyanidin a1 is a member of the class of compounds known as biflavonoids and polyflavonoids. Biflavonoids and polyflavonoids are organic compounds containing at least two flavan/flavone units. These units are usually linked through CC or C-O-C bonds. Some examples include C2-O-C3, C2-O-C4, C3'-C3''', and C6-C8''. Procyanidin a1 is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Procyanidin a1 can be found in bilberry, which makes procyanidin a1 a potential biomarker for the consumption of this food product. 2,8-Bis(3,4-dihydroxyphenyl)-3,4-dihydro-8,14-methano-2H,14H-1-benzopyrano[7,8-d][1,3]benzodioxocin-3,5,11,13,15-pentol, 9CI 3,3',4',5,7-Pentahydroxyflavan-(2->7,4->8)-3,3',4',5,7-pentahydroxyflavan C30H24O12 576.5044 576.126776232 5,13-bis(3,4-dihydroxyphenyl)-4,12,14-trioxapentacyclo[11.7.1.0²,¹¹.0³,⁸.0¹⁵,²⁰]henicosa-2,8,10,15,17,19-hexaene-6,9,17,19,21-pentol proanthocyanidin A2 12798-56-0 OC1CC2=C(O)C=C3OC4(OC5=CC(O)=CC(O)=C5C(C4O)C3=C2OC1C1=CC=C(O)C(O)=C1)C1=CC=C(O)C(O)=C1 InChI=1S/C30H24O12/c31-13-7-20(37)24-22(8-13)41-30(12-2-4-16(33)19(36)6-12)29(39)26(24)25-23(42-30)10-17(34)14-9-21(38)27(40-28(14)25)11-1-3-15(32)18(35)5-11/h1-8,10,21,26-27,29,31-39H,9H2 NSEWTSAADLNHNH-UHFFFAOYSA-N belongs to the class of organic compounds known as biflavonoids and polyflavonoids. These are organic compounds containing at least two flavan/flavone units. These units are usually linked through CC or C-O-C bonds. Some examples include C2-O-C3, C2-O-C4, C3'-C3''', and C6-C8''. Biflavonoids and polyflavonoids Organic compounds Phenylpropanoids and polyketides Flavonoids Biflavonoids and polyflavonoids Aromatic heteropolycyclic compounds 1-hydroxy-2-unsubstituted benzenoids 1-hydroxy-4-unsubstituted benzenoids 3'-hydroxyflavonoids 3-hydroxyflavonoids 4'-hydroxyflavonoids 5-hydroxyflavonoids 7-hydroxyflavonoids A-type proanthocyanidins Alkyl aryl ethers Benzene and substituted derivatives Catechins Catechols Hydrocarbon derivatives Ketals Oxacyclic compounds Polyols Pyranochromenes Pyranoflavonoids Secondary alcohols 1-benzopyran 1-hydroxy-2-unsubstituted benzenoid 1-hydroxy-4-unsubstituted benzenoid 3'-hydroxyflavonoid 3-hydroxyflavonoid 4'-hydroxyflavonoid 5-hydroxyflavonoid 7-hydroxyflavonoid A-type proanthocyanidin Acetal Alcohol Alkyl aryl ether Aromatic heteropolycyclic compound Benzenoid Benzopyran Bi- and polyflavonoid skeleton Catechin Catechol Chromane Ether Flavan Flavan-3-ol Hydrocarbon derivative Hydroxyflavonoid Ketal Monocyclic benzene moiety Organic oxygen compound Organoheterocyclic compound Organooxygen compound Oxacycle Phenol Polyol Proanthocyanidin Pyranochromene Pyranoflavonoid Secondary alcohol logp 2.43 ALOGPS logs -3.66 ALOGPS solubility 1.27e-01 g/l ALOGPS logp 3.59 ChemAxon pka_strongest_acidic 8.66 ChemAxon pka_strongest_basic -3.9 ChemAxon iupac 5,13-bis(3,4-dihydroxyphenyl)-4,12,14-trioxapentacyclo[11.7.1.0²,¹¹.0³,⁸.0¹⁵,²⁰]henicosa-2,8,10,15,17,19-hexaene-6,9,17,19,21-pentol ChemAxon average_mass 576.5044 ChemAxon mono_mass 576.126776232 ChemAxon smiles OC1CC2=C(O)C=C3OC4(OC5=CC(O)=CC(O)=C5C(C4O)C3=C2OC1C1=CC=C(O)C(O)=C1)C1=CC=C(O)C(O)=C1 ChemAxon formula C30H24O12 ChemAxon inchi InChI=1S/C30H24O12/c31-13-7-20(37)24-22(8-13)41-30(12-2-4-16(33)19(36)6-12)29(39)26(24)25-23(42-30)10-17(34)14-9-21(38)27(40-28(14)25)11-1-3-15(32)18(35)5-11/h1-8,10,21,26-27,29,31-39H,9H2 ChemAxon inchikey NSEWTSAADLNHNH-UHFFFAOYSA-N ChemAxon polar_surface_area 209.76 ChemAxon refractivity 144.2 ChemAxon polarizability 56.77 ChemAxon rotatable_bond_count 2 ChemAxon acceptor_count 12 ChemAxon donor_count 9 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 96363 Specdb::MsMs 96364 Specdb::MsMs 96365 Specdb::MsMs 160827 Specdb::MsMs 160828 Specdb::MsMs 160829 Specdb::MsMs 3606074 Specdb::MsMs 3606075 Specdb::MsMs 3606076 Specdb::MsMs 3606077 Specdb::MsMs 3606078 Specdb::MsMs 3606079 Bilberry Type 1 specific Vaccinium myrtillus 180763