InChI=1S/C19H28O8.Na/c1-10-4-5-13-11(2)16(23-15(22)7-6-14(20)21)24-17-19(13)12(10)8-9-18(3,25-17)26-27-19;/h10-13,16-17H,4-9H2,1-3H3,(H,20,21);/q;+1/p-1/t10-,11-,12+,13+,16-,17-,18-,19-;/m1./s1