Acid Red 183(CAS 6408-31-7)

Acid Red 183

Name:C.I.Acid Red 183,C.I.18800

Molecular Structure: Single azo,Metal Complexes

C.I.Acid Red 183,C.I.18800,CAS 6408-31-7,532.48,C16H11ClN4Na2O8S2,Acid Red GRE,Acid Red 2GA,Acid Red GR

Molecular Formula:C₁₆H₁₁ClN₄Na₂O₈S₂

Molecular Weight: 532.48

CAS Registry Number:6408-31-7

Manufacturing Methods : 3-Amino-5-chloro-2-hydroxybenzenesulfonic acid diazo, and 1-(3-Sulfophenyl)-3-methyl-5-pyrazolone coupling, and then in water solution and formic acid chromium heating, in 125 ° C keep 3 hours, make the generation of the chrome complex.

Properties and Applications:  red yellow light. Soluble in water is red. The strong sulfuric acid to red light yellow; Diluted into orange. In water solution to join 10% of sulfuric acid slightly change to blue; Add 10% sodium hydroxide solution into orange. Apply to wool dyeing and leather color.