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![9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid 97%](https://api.sigmaaldrich.com/deepweb/assets/sigmaaldrich/b2b/images/119/230/aldrich_472670_s/aldrich_472670_s_w640.jpg)