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What is the molecular formula of the molecule 7-[[2-[4-chloro-3-(difluoromethyl)-5-methylpyrazol-1-yl]acetyl]amino]-3-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid ?
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C18H17ClF2N6O4S3
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