1 HPS Phenyl dihydrogen phosphate 1.000 2 4OJ (2-methylphenyl) dihydrogen phosphate 0.917 3 GWM (4-methylphenyl) dihydrogen phosphate 0.917 4 262 2-formylphenyl dihydrogen phosphate 0.846 5 88L (4-ethylphenyl) dihydrogen phosphate 0.846 6 FW6 (3-ethylphenyl) dihydrogen phosphate 0.846 7 QMP Cyclohexyl methylphosphonate 0.833 8 4NP 4-nitrophenyl phosphate 0.786 9 300 2-formyl-6-methoxyphenyl dihydrogen phosphate 0.733 10 790 1,2,3,4-tetrahydroquinolin-8-yl dihydrogen phosphate 0.733 11 2PB 2-[(dioxidophosphino)oxy]benzoate 0.714