7-Hydroxymethyl-1-(3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-1,4a,5,6-tetrahydro-cyclopenta[c]pyran-4-carboxylic acid methyl ester Arborescoside InChI=1/C17H24O10/c1-24-15(23)9-6-25-16(11-7(4-18)2-3-8(9)11)27-17-14(22)13(21)12(20)10(5-19)26-17/h6,8,10,12-14,16-22H,2-5H2,1H3/t8?,10-,12-,13+,14-,16+,17+/m1/s cyclopenta[c]pyran-4-carboxylic acid, 1-(beta-D-glucopyranosyloxy)-1,4a,5,6-tetrahydro-7-(hydroxymethyl)-, methyl ester, (1S)- methyl rel-(1R)-1-(beta-L-glucopyranosyloxy)-7-(hydroxymethyl)-1,4a,5,6-tetrahydrocyclopenta[c]pyran-4-carboxylate