3,4,5-Trihydroxy-benzoic acid 6-(cyano-phenyl-methoxy)-3,4,5-trihydroxy-tetrahydro-pyran-2-ylmethyl ester 6'-O-Galloylprunasin InChI=1/C21H21NO10/c22-8-14(10-4-2-1-3-5-10)31-21-19(28)18(27)17(26)15(32-21)9-30-20(29)11-6-12(23)16(25)13(24)7-11/h1-7,14-15,17-19,21,23-28H,9H2/t14-,15?,17?,18?,19?,21?/m0/s benzeneacetonitrile, alpha-[[6-O-(3,4,5-trihydroxybenzoyl)hexopyranosyl]oxy]-, (alphaR)- phenyl{[6-O-(3,4,5-trihydroxybenzoyl)hexopyranosyl]oxy}acetonitrile