You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-[[4-amino-6-[(4-chlorophenyl)methyl]-5-oxo-1,2,4-triazin-3-yl]sulfanyl]-N-(2,4-dimethylphenyl)acetamide .
user
C20H20ClN5O2S
assistant