Acid Yellow 158:1 Usage And Synthesis

Preparation

2,5-Diaminobenzenesulfonic acid first and 2,4,6-Trichloro-1,3,5-triazine condensation, and again 3-Aminobenzenesulfonic acid?condensation, and then diazo, and 2,5-Bichloro-4-(3-methyl-5-oxo-4,5-dihydropyrazol-1-yl)benzenesulfonic acid?coupling, and finally hydrolysis.

Properties and Applications

green light yellow. Yellow evenly powder. Soluble in water, solubility than 50 g/L (50 ℃). Can be used for wool and polyamide fiber fabric dyeing.

Acid Yellow 158:1(908584-95-2)Related Product Information

• Acid yellow 17
• Acid Yellow 184
• C. I. Acid yellow 18
• Acid Yellow 158
• sodium 4-[4-[[3-(anilinosulphonyl)phenyl]azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]-2,5-dichlorobenzenesulphonate
• ACID YELLOW 159
• disodium 4,4'-bis[(4-hydroxy-2-methylphenyl)azo]stilbene-2,2'-disulphonate
• ACID YELLOW 16