Gallagic acid
Names
Preferred IUPAC name
2,2′-(1,2,6,7-Tetrahydroxy-4,9-dioxo-4,9-dihydro-[1]benzopyrano[5,4,3-cde ][1]benzopyran-3,8-diyl)bis(3,4,5-trihydroxybenzoic acid)
Identifiers
UNII
InChI=1S/C28H14O18/c29-5-1-3(25(39)40)7(17(33)15(5)31)9-13-11-12-14(28(44)46-23(11)21(37)19(9)35)10(20(36)22(38)24(12)45-27(13)43)8-4(26(41)42)2-6(30)16(32)18(8)34/h1-2,29-38H,(H,39,40)(H,41,42)
Key: ZASJRRFAYSNSHU-UHFFFAOYSA-N
Oc4c6c1c(c5c(=O)o6)c(oc(=O)c1c(c4O)-c(c(O)c2O)c(C(O)=O)cc2O)c(O)c(O)c5-c3c(C(O)=O)cc(O)c(O)c3O
Properties
C28 H14 O18
Molar mass
638.39 g/mol
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
Chemical compound
Gallagic acid is a polyphenolic chemical compound that can be found in the ellagitannins, a type of tannin, found in Punica granatum (pomegranate).[ 1] It is a building block of the corresponding tannin punicalagin , punicalin , punicacortein C and 2-O-galloyl-punicalin .
^ Antioxidant, antimalarial and antimicrobial activities of tannin-rich fractions, ellagitannins and phenolic acids from Punica granatum L. Reddy Muntha K., Gupta Sashi K., Jacob Melissa R., Khan Shabana I. and Ferreira Daneel, Planta medica, 2007, vol. 73, no5, pp. 461-467, INIST 18773247
Moieties Lactones Monomers
Acetonyl geraniin
Alnusiin
Bicornin
Carlesiin
Casuarictin
Emblicanin A and B
Euscaphinin
Galloyl pedunculagin
Grandinin
Helioscopinin B
Jolkinin
Lagerstannin A , B and C
Macranganin
Myrobalanitannin
Nupharin A , B , C , D , E and F
Pedunculagin
Punicalagin
Punigluconin
Phyllanemblinin A , B , C , D , E and F
Punicalin
Roburin E
Rugosin E
Sanguiin H-5
Stenophyllanin A , B and C
Strictinin
Tellimagrandin I and II
Teracatain
Terchebulin
Terflavin A and B
Tergallic acid
Tergallic acid dilactone
Oligomers Other