You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[4,7-bis(carboxymethyl)-5-[[4-[2-(propan-2-ylamino)ethylcarbamothioylamino]phenyl]methyl]-1,4,7-triazonan-1-yl]acetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H40N6O6S
assistant