1,-Naphthalenedisulfonic acid, 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis-, tetrasodium salt Usage And Synthesis

Preparation

4-Aminonaphthalene-1,6-disulfonic acid?or 4-Aminonaphthalene-1,7-disulfonic acid?diazo, and 2-Amino-4-methylanisole coupling, and then make the light gasification.

Properties and Applications

orange. Soluble in water for orange, slightly soluble in alcohol. The strong sulfuric acid for blue, green light blue after diluted precipitation. The dye solution to join strong hydrochloric acid have hidden cyan precipitation; Add thick sodium hydroxide solution have orange precipitation. Used for cellulose fiber dyeing and printing, and can be used in the paper color. 80 ℃ with the biggest dyeing affinity, good levelness.

1,-Naphthalenedisulfonic acid, 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis-, tetrasodium salt(8004-79-3)Related Product Information

• Benzoic acid, 5-[[4'-[(2,6-diamino-3-methyl-5-sulfophenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-2-hydroxy-3-methyl-, disodium salt
• DIRECT ORANGE 61
• Direct Orange 5
• Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-nitro-, reaction products with 3-[(4-amino-3-methoxyphenyl)azo]benzenesulfonic acid monosodium salt
• Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-[2-[2-methoxy-5-methyl-4-[2-(4-sulfophenyl)diazenyl]phenyl]-2-oxidodiazenyl]-, sodium salt (1:4)
• Direct orange 60
• C.I. Direct Orange 63
• DIRECT ORANGE 6
• C.I. Direct Orange 71