You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 1-(4-methylphenyl)-3-morpholin-4-yl-6,8-dihydro-5H-imidazo[1,5-a]pyrazine-7-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H24N4O3
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