Flavogallonic acid dilactone

Flavogallonic acid dilactone
Names
	Preferred IUPAC name 3,4,5-Trihydroxy-2-(1,6,7-trihydroxy-4,9-dioxo-4,9-dihydro[1]benzopyrano[5,4,3-cde][1]benzopyran-2-yl)benzoic acid
Identifiers
CAS Number	103744-88-3 ;
3D model (JSmol)	Interactive image;
PubChem CID	71308199;
	InChI InChI=1S/C21H10O12/c22-8-2-5(19(28)29)10(16(27)14(8)25)4-1-6-11-12-7(21(31)32-17(11)13(4)24)3-9(23)15(26)18(12)33-20(6)30/h1-3,22-27H,(H,28,29) Key: ICEBGCDIMFYRLU-UHFFFAOYSA-N;
	SMILES O=c4oc3c1c(c(c2O)oc(=O)c1cc(O)c3O)c4cc2-c(c(O)c5O)c(C(O)=O)cc5O;
Properties
Chemical formula	C21H10O12
Molar mass	454.29 g/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

References

^ Antiproliferative constituents in the plant 8. Seeds of Rhynchosia volubilis. Kinjo Junei, Nagao Tsuneatsu, Tanaka Takashi, Nonaka Gen-Ichiro and Okabe Hikaru, Biological & pharmaceutical bulletin, 2001, vol. 24, no12, pp. 1443-1445, INIST:13400364, doi:10.1248/bpb.24.1443
^ 5A-Reductase inhibitory tannin-related compounds isolated from Shorea laevifolia. Yoshio Hirano, Ryuichiro Kondo and Kokki Sakai, Journal of wood science, Volume 49, Number 4, pp. 339-343, doi:10.1007/s10086-002-0481-y
^ The use of microfluorometric method for activity-guided isolation of antiplasmodial compound from plant extracts. M. N. Shuaibu, P. A. Wuyep, T. Yanagi, K. Hirayama, T. Tanaka and I. Kouno, Parasitol Res (2008) 102, pp. 1119–1127, doi:10.1007/s00436-008-0879-6

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v t e Types of hydrolysable tannins
Carbohydrates	Glucose Quinic acid Shikimic acid
Phenolic	gallic acid \| Ellagic acid \| Vanillic acid
Types	Ellagitannins Gallotannins
unclassified	1,2-di-O-galloyl-3-O-digalloyl-4,6-O-(S)-hexa- hydroxydiphenoy-β-D-glucose 2,3-(S)-Hexahydroxydiphenoyl-D-glucose Alienanin B Alunusnin A Aromatinin A Balanophotannin D, E, F and G Burkinabin A, B and C Castavaloninic acid Cinchotannic acid Cocciferin D2 Emblicanins (Emblicanin A and Emblicanin B) Euprostin A Flavogallonic acid Flavogallonic acid dilactone Heterophylliin D Helioscopin A (1,6-(S)-hexahydroxydiphenoyl-2,4-(R)-elaeocarpusinoyl-3-O-galloyl-β-D-glucose) Helioscopin B (1,3,6-tri-O-galloyl-2,4-(R)-elaeocarpusinoyl-β-D-glucose) Helioscopinin A (1,6-(S)-hexahydroxydiphenoyl-2,4-(S)-dehydrohexahydroxydiphenoyl-3-O-galloyl-β-D-glucose) Helioscopinin B (1,6-(S)-hexahydroxydiphenoyl-3-O-galloyl-β-D-glucose) Hipophaenin D Isostrictinin Kinotannic acid Platycaryanin A Rugosin C, D and F Squarrosanin A Strictinin Syzyginin A Tannic acid Tellimagrandin I Tercatin Tergallagin Vescalin Vescavaloneic acid/Castavaloneic acid
Other	Tannin sources Tannate