Name:C.I.Direct Red 144,C.I.17830
Molecular Structure: Single azo class
Molecular Weight: 713.63
CAS Registry Number:6492-66-6
Manufacturing Methods : 3-Methyl-4-amino-3-carboxy-4′-hydroxybenzanilide diazo, and 7-(4-Amino-3-methylbenzamido)-4-hydroxynaphthalene-2-sulfonic acid coupling.
Properties and Applications: red. Slightly soluble in water and red to blue light for Claret, soluble in ethanol for red orange. The strong sulfuric acid to red light purple, diluted red for quality. The dye solution with strong hydrochloric acid have Red sauce precipitation; Add thick sodium hydroxide solution for product red.
|Standard||Acid Resistance||Alkali Resistance||Light Fastness||Soaping||Water|
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