InChI=1S/C21H35O7P/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-21(23)27-18-20(22)19-28-29(24,25)26/h5-8,20,22H,2-4,11-19H2,1H3,(H2,24,25,26)/b6-5+,8-7-