China 1, 3-Bis (trifluoromethyl) Benzene CAS 402-31-3; Xylene Hexafluoride; 1-Fluoro-4- (trichloromethyl) Benzene, Find details about China Aromatic Derivatives, Crown Ethers from 1, 3-Bis (trifluoromethyl) Benzene CAS 402-31-3; Xylene Hexafluoride; 1-Fluoro-4- (trichloromethyl) Benzene