You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 4-tert-butyl-N-[2-methyl-3-[4-methyl-6-[morpholin-4-yl-(4-sulfanylidenecyclohexa-1,5-dien-1-yl)amino]-5-oxopyrazin-2-yl]phenyl]benzamide by IUPAC nomenclature, provide its molecular formula.
user
C33H37N5O3S
assistant