You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-amino-4-[4-heptoxy-3-(trifluoromethyl)phenyl]-2-(phosphorosooxymethyl)but-3-en-1-ol is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H27F3NO4P
assistant