Tai'an Jia Ye Biological Technology Co.,Ltd

Hydroxypropyl Methyl Cellulose
2- methyl group 2- methyl group Chinese Synonyms: 2 - methyl (anthracenedione; beta methyl anthraquinone; 2-methyl anthraquinone; 2-methyl anthraquinone, 97%; methyl Ngui BETA-; 2 - methyl anthraquinone; teak quinone, beta - methyl anthraquinone English Name: Anthraquinone 2-Methyl English synonyms: 2-methyl-10-anthracenedione; 2-methyl-9,10 (9h, 10h) -anthracenedione; 2-Methylanthra-9,10-quinone; 2-Methylanthracenedione; 2-Methylanthrapuinone; 9,10-Anthracenedione, 2-methyl-; 9,10-Antracenedione 2-methyl-; anthraquinone CAS number: 84-54-8 Molecular formula: C15H10O2 Molecular weight: 222.24 EINECS number: 201-539-6 Chemical property Yellow crystal. Level: industrial grade Content: > 99% Product use: 1, for the production of high-grade dyes and intermediates; 2, used for organic synthesis of raw materials, synthetic dyes, photosensitive resin photosensitizer; 3, can be used as dye intermediates, photosensitive resin photosensitive agent, organic synthesis of raw materials; Production method: Will toluene and anhydrous AlCl3 heating, controlling the temperature at 45 to 50 DEG C, phthalic anhydride is added in the external cooling, mixture warm until the reaction is completed. The reaction mixture is poured into the 10% sulfuric acid aqueous solution, and the slurry product containing the product is washed, separated and separated. Containing the solvent layer with 5% sodium carbonate solution mixing, filtering, washing, drying and 2 - (of toluene sulfonyl) benzoic acid, then with fuming sulfuric acid in 115 DEG C heating 1H loop, the product poured into cold water, filtration, washing, drying and. Packing: 25kg cardboard barrel / on demand