1 CU7 (2r)-2,3-dihydroxypropyl (2s)-2,3-dihydroxypropyl hydrogen phosphate 1.000 2 X3X Bis[(2s)-2,3-dihydroxypropyl] hydrogen phosphate 1.000 3 GSE L-alpha-glycerophosphorylserine 0.824 4 KSV (2r)-2,3-dihydroxypropyl ethyl hydrogen (S)-phosphate 0.800 5 GPE L-alpha-glycerophosphorylethanolamine 0.750