InChI=1S/C23H38O19/c1-4-7(25)16(40-23-13(31)9(27)10(28)17(41-23)19(33)34)18(20(35)37-4)42-22-14(32)11(29)15(5(2)38-22)39-21-12(30)8(26)6(24)3-36-21/h4-18,20-32,35H,3H2,1-2H3,(H,33,34)