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system
Provide the molecular formula for the IUPAC named substance 2-methoxyethyl 8-methyl-6-[3-[(4-propan-2-ylphenyl)carbamoylamino]phenyl]-2,3,4,6-tetrahydropyrimido[2,1-b][1,3]thiazine-7-carboxylate .
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C28H34N4O4S
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