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2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt

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2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt Basic information
Product Name:2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt
Synonyms: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
CAS:6441-95-8
MF:C23H18N4Na2O9S3
MW:636.58496
EINECS:613-593-1
Product Categories:
Mol File:6441-95-8.mol
2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt Structure
2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt Chemical Properties
Safety Information
MSDS Information
2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt Usage And Synthesis
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 Applicationsred 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 materials8-(4-methylphenylsulfonamido)-1-naphthol-3,6-disulfonicacid-->N1-(3-Aminophenyl)acetamide-->4-Nitroaniline
Tag:2,7-Naphthalenedisulfonic acid, 3-[(4-aminophenyl)azo]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, disodium salt(6441-95-8) Related Product Information
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