The molecule is an organic phosphoramidate anion obtained by deprotonation of the two phosphoramide OH groups of fosaprepitant. It is a conjugate base of a fosaprepitant.
5-[[(2R,3S)-2-[(1R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)morpholin-4-yl]methyl]-2-phosphonato-4H-1,2,4-triazol-3-one