You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[[5-[2-[(5,6-diphenyl-1,2,4-triazin-3-yl)sulfanyl]acetyl]thiophen-2-yl]methyl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C24H20N4O2S2
assistant