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system
Provide the molecular formula for the IUPAC named substance 2-[[5-[4-[5-(2-hydroxyethylimino)-4-methyl-1,3,4-thiadiazol-2-yl]phenyl]-3-methyl-1,3,4-thiadiazol-2-ylidene]amino]ethanol .
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C16H20N6O2S2
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