You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-2-amino-1-[3-(trifluoromethyl)-6,8-dihydro-5H-[1,2,4]triazolo[4,3-a]pyrazin-7-yl]-4-(2,4,5-trifluorophenyl)butan-1-one;phosphoric acid;hydrate is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H20F6N5O6P
assistant