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C.I. Direct Blue 33

C.I. Direct Blue 33 Structure
C.I. Direct Blue 33 structure
CAS No.
8000-88-2
Chemical Name:
C.I. Direct Blue 33
Synonyms
Direct Blue 33;C.I. Direct Blue 33;C.I.Direct Blue 33:C.I.31635
CBNumber:
CB64759700
Molecular Formula:
Molecular Weight:
0
MDL Number:
MOL File:
Mol file
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C.I. Direct Blue 33 Chemical Properties,Uses,Production

Preparation

N-(4-aminophenyl)acetamide diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid, and then hydrolysis amino acylation again diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, again diazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling. And if 5-Aminonaphthalene-2-sulfonic acid?and?8-Aminonaphthalene-2-sulfonic acid?mixture coupling is C.I. 31635, if just and 5-Aminonaphthalene-2-sulfonic acidcoupling is C.I.316351, if just and 8-Aminonaphthalene-2-sulfonic acid coupling is C.I. 316352.

Properties and Applications

red light navy blue. Soluble in water for the navy, slightly soluble in alcohol. The strong sulfuric acid for dark blue-green, diluted into purple. The dye solution to join strong hydrochloric acid for dark purple, have precipitation; Add thick sodium hydroxide solution into a dark.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 4 3 1-2 1

C.I. Direct Blue 33 Preparation Products And Raw materials

Raw materials

1-Naphthylamine-7-sulfonic acid J acid 1-Naphthol-4-sulfonic acid 1-Aminonaphthalene-6-sulfonic acid 4'-Aminoacetanilide

Preparation Products

8000-88-2(C.I. Direct Blue 33)Related Search:

trisodium 4-hydroxy-3-[[4'-[(1-hydroxy-4-sulphonato-2-naphthyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]naphthalene-2,7-disulphonate C.I. Direct blue 38, trisodium salt 5-Chloro-4-hydroxy-3-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-3,3'-dimethoxy-1,1'-biphenyl-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt 2,7-Naphthalenedisulfonic acid, 4-amino-6-[[4'-[(8-amino-1-hydroxy-5-sulfo-2-naphthalenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-5-hydroxy-3-[(2-methyl-5-nitrophenyl)azo]-, trisodium salt Direct Blue 312
1'-Hydroxy-4-[[4-[(1-hydroxy-4-sodiosulfo-2-naphthalenyl)azo]-7-sodiosulfo-1-naphthalenyl]azo]-6'-phenylamino[1,2'-azobisnaphthalene]-3',7-disulfonic acid disodium salt Direct Blue 310 2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-chloro-4-hydroxy-, tetrasodium salt Direct Blue 311

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C.I. Direct Blue 33 Direct Blue 33 C.I.Direct Blue 33:C.I.31635 8000-88-2