InChI=1S/C19H38NO7P/c1-2-3-4-5-6-7-8-9-10-11-12-13-19(22)27-18(16-21)17-26-28(23,24)25-15-14-20/h5-6,18,21H,2-4,7-17,20H2,1H3,(H,23,24)/b6-5-/t18-/m1/s1