You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-amino-N-[3-[[(2S)-2-amino-3-phenylpropanoyl]-[3-[[(2S)-2-amino-3-phenylpropanoyl]amino]propyl]amino]propyl]-3-phenylpropanamide;2,2,2-trifluoroacetic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C39H47F9N6O9
assistant