You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-2-methyl-2-(1-methylpyrazol-4-yl)-4-(5-pyridin-2-yl-1,3,4-thiadiazol-2-yl)morpholine is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H18N6OS
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