2-(Trifluoromethyl)benzoyl chloride312-94-730 % similar 2,5-Difluorobenzoyl chloride35730-09-730 % similar Picolinoyl chloride hydrochloride39901-94-530 % similar 2,5-Dimethyl-3-furancarbonyl chloride50990-93-730 % similar 2,4-Difluorobenzoyl chloride72482-64-530 % similar