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system
What is the molecular formula of the molecule 2-(3-tert-butyl-1-methyl-7-oxo-4-thiophen-2-yl-4H-pyrazolo[3,4-e][1,4]thiazepin-8-yl)-N-(3-methoxypropyl)acetamide ?
user
C21H30N4O3S2
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