IUPAC 名称
10-{2,3,4,7,8,9,19-heptahydroxy-12,17-dioxo-13,16-dioxatetracyclo[13.3.1.0⁵,¹⁸.0⁶,¹¹]nonadeca-1(18),2,4,6,8,10-hexaen-14-yl}-3,4,5,16,17,18-hexahydroxy-8,14-dioxo-9,13-dioxatricyclo[13.3.1.0²,⁷]nonadeca-1(18),2,4,6,15(19),16-hexaen-11-yl 3,4,5-trihydroxybenzoate
描述
Stachyurin is a member of the class of compounds known as hydrolyzable tannins. Hydrolyzable tannins are tannins with a structure characterized by either of the following models. In model 1, the structure contains galloyl units (in some cases, shikimic acid units) are linked to diverse polyol carbohydrate-, catechin-, or triterpenoid units. In model 2, contains at least two galloyl units C-C coupled to each other, and do not contain a glycosidically linked catechin unit. Stachyurin is slightly soluble (in water) and a very weakly acidic compound (based on its pKa). Stachyurin can be found in guava, which makes stachyurin a potential biomarker for the consumption of this food product. Stachyurin is an ellagitannin. It is found in the pericarp of pomegranates (Punica granatum). It is also found in Casuarina and Stachyurus species and in Alnus sieboldiana .
InChI标识符
InChI=1S/C41H28O26/c42-12-1-7(2-13(43)24(12)48)37(58)64-16-6-63-38(59)11-3-8(22(46)32(56)23(11)47)17-9(4-14(44)25(49)27(17)51)39(60)65-34(16)36-35-31(55)21-20(41(62)66-35)19(29(53)33(57)30(21)54)18-10(40(61)67-36)5-15(45)26(50)28(18)52/h1-5,16,31,34-36,42-57H,6H2