1,6-Digalloyl glucose

1,6-Digalloyl glucose
Names

IUPAC name [(2R,3S,4S,5R,6S)-3,4,5-Trihydroxy-6-(3,4,5-trihydroxybenzoyl)oxyoxan-2-yl]methyl 3,4,5-trihydroxybenzoate
Other names Digalloyl glucose
Identifiers
ChemSpider	389206
InChI InChI=1S/C20H20O14/c21-8-1-6(2-9(22)13(8)25)18(30)32-5-12-15(27)16(28)17(29)20(33-12)34-19(31)7-3-10(23)14(26)11(24)4-7/h1-4,12,15-17,20-29H,5H2/t12-,15-,16+,17-,20+/m1/s1 Key: LYGRISUQIZNHGM-IVABAYMNSA-N InChI=1/C20H20O14/c21-8-1-6(2-9(22)13(8)25)18(30)32-5-12-15(27)16(28)17(29)20(33-12)34-19(31)7-3-10(23)14(26)11(24)4-7/h1-4,12,15-17,20-29H,5H2/t12-,15-,16+,17-,20+/m1/s1 Key: LYGRISUQIZNHGM-IVABAYMNBE
Jmol-3D images	Image
PubChem	440221
SMILES C1=C(C=C(C(=C1O)O)O)C(=O)OC[C@@H]2[C@H]([C@@H]([C@H]([C@@H](O2)OC(=O)C3=CC(=C(C(=C3)O)O)O)O)O)O
Properties
Molecular formula	C₂₀H₂₀O₁₄
Molar mass	484.36 g·mol⁻¹
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

1-O,6-O-Digalloyl-β-D-glucose is a gallotannin. It can be found in oak species.^[1]

References

↑ Mämmelä, Pirjo; Savolainen, Heikki; Lindroos, Lasse; Kangas, Juhani; Vartiainen, Terttu (2000). "Analysis of oak tannins by liquid chromatography-electrospray ionisation mass spectrometry". Journal of Chromatography A 891 (1): 75–83. doi:10.1016/S0021-9673(00)00624-5. PMID 10999626.

Types of gallotannins

Aglycones

Galloyl glucoses

1-Galloyl glucose Glucogallin

Digalloyl glucoses:	1,6-Digalloyl glucose 2,6-Digalloyl glucose 3,6-digalloyl glucose

Trigalloyl glucoses:	1,2,3-Trigalloyl glucose 1,2,3-tri-O-galloyl-β-D-glucose 1,2,6-Trigalloyl glucose / 1,3,6-Trigalloyl glucose

Tetragalloyl glucoses:	1,2,3,6-tetragalloylglucose 1,2,3,6-tetra-O-galloyl-β-D-glucose 1,2,4,6-Tetragalloyl glucose 1,2,4,6-tetra-O-galloyl-β-D-glucose

Pentagalloyl glucose:	1,2,3,4,6-Pentagalloyl-glucose 6-digalloyl-1,2,3-trigalloyl-glucose

other	Hexagalloyl glucose Heptagalloyl glucose Octagalloyl glucose Nonagalloyl glucose Decagalloyl glucose

Galloyl quinic acids

Galloyl quinic acids:	3-O-Galloylquinic acid theogallin 4-O-Galloylquinic acid 5-O-Galloylquinic acid

Digalloyl quinic acids:	1,4-Di-O-galloylquinic acid 3,4-di-O-Galloylquinic acid 3,5-di-O-Galloylquinic acid 4,5-di-O-Galloylquinic acid

Trigalloyl quinic acids:	1,3,4-Tri-O-galloylquinic acid 3,4,5-Tri-O-galloylquinic acid

Galloyl shikimic acids

4-O-Galloyl shikimic acid
5-O-Galloyl shikimic acid
3,5-di-O-galloyl-shikimic acid
3,4,5-tri-O-galloylshikimic acid

others

1,2,6-trigalloyl alloside
1,3,6-trigalloyl alloside
1,2,3,6-tetragalloyl alloside
1-O-galloyl proto-quercitol
1,4-di-O-galloyl proto-quercitol