InChI=1S/C21H37O8P/c1-2-19(22)15-13-11-9-7-5-3-4-6-8-10-12-14-16-21(24)28-17-20(23)18-29-30(25,26)27/h3,5,9,11,13,15,19-20,22-23H,2,4,6-8,10,12,14,16-18H2,1H3,(H2,25,26,27)/b5-3-,11-9-,15-13+