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Johnson M A, O'Brien P Q, Davis P L. "A Process for Preparing High-Purity 4-Ethyl-5-(2-(3-methyl-5-(trifluoromethyl)-1H-pyrazol-1-yl)thiazol-4-yl)-4H-1,2,4-triazole-3-thiol" [P]. US Patent, US 10436514 B2, 2024-09-13.
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