White flake or white powder, insoluble in water, soluble in ethanol, ether, chloroform, glycerin and alkali solution.
Stability: The color gradually becomes deeper and remains stable in the air, but the color becomes darker when exposed to the sun. It can evaporate with water vapor. Color reaction: the water solution reacts with ferric chloride solution to be green.
Since 2001, Qingdao Longyuntong Corporation has developed to be a leading manufacturer of Azoic Dyes (Naphthol AS series and Bases) with annual output over 8000 MTs and pharmaceutical intermediates, pesticide intermediates. It is the qualified supplier for global pigment, pesticides, medicine, health food manufacturers. It is also a main supplier of other pigment-related intermediates such as Acetoacet Anilide and Phenyl Methyl Pyrazolone series from China. Our company has set up 3 factories in Shandong, Tai'an and Weifang to guarantee the supply of our products