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874663-18-0 4h-thieno[3,2-c][1]benzopyran-2-carboxylic acid, 4,4-dimethyl-

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Product Name 4H-Thieno[3,2-c][1]benzopyran-2-carboxylic acid, 4,4-dimethyl-
CAS No. 874663-18-0
Molecular Formula C14H12O3S