1.One of the largest manufacturer in China 2.High quality and Competitive Price 3.95%min purity 4.ISO9001 5. ... , three nitro fluorene ketone which is used to xerography, fang base tranparent nylon, indanthrene dye, antispasmotic, analgesics, hypotensor, insecticide, herbicide, ... resin, wetting agent, detergent, liquid flash agent, disinfectant, and etc. High Quality FLUORENE 95%min , 9H-FLUORENE