You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[4-(6-methyl-8-methylsulfanylimidazo[1,2-a]pyrazin-3-yl)pyrazol-1-yl]propan-2-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C14H15N5OS
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