Pentagalloylglucose

Pentagalloylglucose
Names
	IUPAC name β-D-Glucopyranose pentakis(3,4,5-trihydroxybenzoate)
	Systematic IUPAC name (2S,3R,4S,5R,6R)-6-{[(3,4,5-Trihydroxybenzoyl)oxy]methyl}oxane-2,3,4,5-tetrayl tetrakis(3,4,5-trihydroxybenzoate)
	Other names 1,2,3,4,6-Penta-O-galloyl-β-D-glucose; 1,2,3,4,6-Pentakis-O-galloyl-beta-D-glucose; beta-Penta-O-galloyl-glucose; PGG; 1,2,3,4,6-Penta-O-galloyl-beta-D-glucose
Identifiers
CAS Number	14937-32-7 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:18082 ;
ChEMBL	ChEMBL382408 ;
ChemSpider	58735 ;
ECHA InfoCard	100.113.489
PubChem CID	65238;
UNII	3UI3K8W93I ;
CompTox Dashboard (EPA)	DTXSID901029765 ;
	InChI InChI=1S/C41H32O26/c42-17-1-12(2-18(43)28(17)52)36(57)62-11-27-33(64-37(58)13-3-19(44)29(53)20(45)4-13)34(65-38(59)14-5-21(46)30(54)22(47)6-14)35(66-39(60)15-7-23(48)31(55)24(49)8-15)41(63-27)67-40(61)16-9-25(50)32(56)26(51)10-16/h1-10,27,33-35,41-56H,11H2/t27-,33-,34+,35-,41+/m1/s1 Key: QJYNZEYHSMRWBK-NIKIMHBISA-N ;
	SMILES C1=C(C=C(C(=C1O)O)O)C(=O)OCC2C(C(C(C(O2)OC(=O)C3=CC(=C(C(=C3)O)O)O)OC(=O)C4=CC(=C(C(=C4)O)O)O)OC(=O)C5=CC(=C(C(=C5)O)O)O)OC(=O)C6=CC(=C(C(=C6)O)O)O;
Properties
Chemical formula	C41H32O26
Molar mass	940.681 g·mol−1
	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

Pentagalloylglucose, or more specifically 1,2,3,4,6-penta-O-galloyl-β-D-glucose, is the pentagallic acid ester of glucose. It is a gallotannin and the precursor of ellagitannins.

Pentagalloylglucose can precipitate proteins, including human salivary α-amylase.