sodium 5-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-4-hydroxytoluene-3-sulphonate Chemical Properties

EPA Substance Registry System

Benzenesulfonic acid, 3-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-2-hydroxy-5-methyl-, monosodium salt (6232-55-9)

sodium 5-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-4-hydroxytoluene-3-sulphonate Usage And Synthesis

Preparation

2-Hydroxy-3-amino-5-methylbenzenesulfonic acid?diazotization, and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one coupling.

Properties and Applications

dark yellow red. Dark yellow red powder. Soluble in water for yellow brown. In concentrated sulfuric acid for orange red, after diluted into yellow orange, precipitation, In concentrated hydrochloric acid for yellow brown, precipitation. Dye aqueous solution to join sodium hydroxide as yellow. Mainly used for wool, silk, nylon of post-mordant dyeing, also used for cobalt medium printing.

sodium 5-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-4-hydroxytoluene-3-sulphonate (6232-55-9)Related Product Information

• Mordant Red 28
• hydrogen 9-(2,5-dicarboxylato-4-hydroxyphenyl)-3,6-bis(diethylamino)xanthylium
• Mordant Red 19
• 5-[[2-[(2-Amino-8-hydroxy-6-sulfo-1-naphthalenyl)azo]-4-sulfophenyl]sulfonyl]-2-hydroxybenzoic acid trisodium salt
• Mordant Red 2
• sodium 3-[(1-butyl-1,2-dihydro-4-hydroxy-2-oxo-3-quinolyl)azo]-5-chloro-2-hydroxybenzenesulphonate
• Mordant Red 29
• Mordant Red 21
• Alizarin Red S