1 TO4 Propan-2-yl (R)-dodec-11-en-1-ylphosphonofluoridate 1.000 2 DPE N-undecanylphosphonate methyl ester group 0.789 3 C11 Undecyl-phosphinic acid butyl ester 0.762 4 MUP Methoxyundecylphosphinic acid 0.750