Preparation
3-Aminobenzenesulfonic acid diazo, and 8-Aminonaphthalene-2-sulfonic acid coupling, again diazo, and 5-Amino-7-ehtoxy-2-naphthalenesulfonic acid coupling, again diazo, and 7-(3-Aminobenzamido)-4-hydroxynaphthalene-2-sulfonic acid?coupling (with aqueous ammonia in Pyridine medium the last step coupled).
Properties and Applications
dark green. Soluble in water for green light blue, soluble in ethanol. The strong sulfuric acid for blue-ray black, diluted green for blue-ray. The dye solution to join strong hydrochloric acid have blue light green precipitation; Add thick dark sodium hydroxide solution have precipitation.
|
Standard
|
Acid Resistance
|
Alkali Resistance
|
Light Fastness
|
Soaping
|
Water
|
|
Fading
|
Stain
|
Fading
|
Stain
|
|
ISO
|
4
|
4
|
5
|
4-5
|
|
4-5
|
|
|
AATCC
|
|
|
4-5
|
3-4
|
|
|
|
![tetrasodium 5-[[6-[(3-aminobenzoyl)amino]-1-hydroxy-3-sulphonato-2-naphthyl]azo]-6-ethoxy-8-[[7-sulphonato-4-[(3-sulphonatophenyl)azo]naphthyl]azo]naphthalene-2-sulphonate Structure](https://www.chemicalbook.com/CAS/GIF/6428-19-9.gif)