2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt
![2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt Structure](CAS/20200119/GIF/6441-95-8.gif)
- CAS No.
- 6441-95-8
- Chemical Name:
- 2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt
- Synonyms
- Acid Blue 21;C.I.Acid Blue 21:C.I.18120;2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt
- CBNumber:
- CB04750699
- Molecular Formula:
- C23H18N4Na2O9S3
- Molecular Weight:
- 636.58496
- MDL Number:
- MOL File:
- 6441-95-8.mol
2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt Chemical Properties,Uses,Production
Preparation
(a) N-(3-aminophenyl)acetamide diazo, and 8-(4-Methylphenylsulfonamido)-1-naphthol-3,6-disulfonic acid coupling, hydrolysis acetyl groups; (b) 4-Nitrobenzenamine diazo, and 8-(4-Methylphenylsulfonamido)-1-naphthol-3,6-disulfonic acid coupling, and then will the nitro reduction.
Properties and Applications
red light blue. Soluble in water for red purple. The strong sulfuric acid for red, diluted the same color. In water solution to join strong hydrochloric acid for brick red; Add 10% sodium hydroxide solution for blu-ray red. The sun fastness medium.
2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt Preparation Products And Raw materials
Raw materials
Preparation Products
6441-95-8(2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt)Related Search:
sodium hydrogen -2-hydroxy-5-[[4-[[4-[(4-hydroxy-3-sulphonatophenyl)amino]phenyl](1-methyl-2-phenyl-1H-indol-3-yl)methylene]-2,5-cyclohexadien-1-ylidene]amino]benzenesulphonate
ACID BLUE 183
ACID BLUE 185
UNIBLUE A SODIUM SALT
Xanthylium, 9-(2-carboxy-3,6-dichlorophenyl)-3-[(4-ethoxyphenyl)amino]-6-[(4-ethoxysulfophenyl)amino]-, inner salt, monosodium salt
1of2
2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt
C.I.Acid Blue 21:C.I.18120
Acid Blue 21
6441-95-8
