You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 5-amino-N-(3-methoxyphenyl)-1-[2-oxo-2-(2,4,6-trimethylanilino)ethyl]triazole-4-carboxamide into molecular formula.
user
C21H24N6O3
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