... .One of the largest manufacturer in China 2.High quality and Competitive Price 3.95%min purity 4.ISO9001 ... organic compounds such as ethanol, diethyl ether, benzene, carbon disulfide, and etc.. It easily sublimate in high vacuum.Melting point ... compound, three nitro fluorene ketone which is used to xerography, fang base tranparent nylon, indanthrene dye, antispasmotic, analgesics, hypotensor, ...