2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt
- Product Name
- 2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt
- 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
- Formula Weight
- 636.58496
- MOL File
- 6441-95-8.mol
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2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt Chemical Properties,Usage,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
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2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt Suppliers
6441-95-8, 2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium saltRelated 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
ACID BLUE 161, PURE
Chromate(3-), bis[4-(acetylamino)-5-(hydroxy-κO)-6-[2-[2,3,5-trichloro-6-(hydroxy-κO)phenyl]diazenyl-κN1]-1-naphthalenesulfonato(3-)]-, sodium hydrogen (1:2:1)
ACID BLUE 20
Acid blue 198