You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[[2-butyl-5-[(Z)-2-carboxy-3-thiophen-2-ylprop-1-enyl]imidazol-1-yl]methyl]benzoic acid;dihydrate is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H28N2O6S
assistant