InChI=1S/C21H43O7P/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-21(23)28-20(18-22)19-27-29(24,25)26/h20,22H,2-19H2,1H3,(H2,24,25,26)