You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[[4-(4-benzoylpiperazin-1-yl)-3-(thiophene-2-carbonylamino)benzoyl]amino]-3-pyridin-3-ylpropanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C31H29N5O5S
assistant