Contact： manager Tang 18261695669
Contact：person: Manager Zhang 13701865101
Address：room 1508, No. 2, Lane 289, Zheqiao Road, Pudong New Area, Shanghai
1. Property: Needle-like crystal
2. Density (g/mL, 25/4℃): 1.18 g/cm3
3. Melting point (ºC): 43-46℃
4. Boiling point (ºC, normal pressure): 232℃
5. Flash point (ºC): 108℃
6. Solubility: soluble in ether and ethanol.
Keep container sealed and store in a cool, dry place
Obtained from the reaction of o-chlorobenzoic acid and urea: Mix o-chlorobenzoic acid, sulfamic acid and urea and heat to about 140℃ to melt, react vigorously with stirring and release a large amount of gas, the temperature will automatically rise to 220-230℃ , Reaction 2h. Then cool to below 15 ℃, filter, the resulting solids were washed with 3% ammonia and water until neutral, and then dried to obtain the finished product.
Organic synthesis intermediate. It is mainly used to synthesize dye intermediate 2-cyano-4-nitroaniline, and the pharmaceutical industry is used to synthesize new antimalarial drug nitroquine.