You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[4-[(3-butan-2-yl-5-butyl-1,2,4-triazol-1-yl)methyl]phenyl]pyrrole-2-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H28N4O2
assistant