C.I. Direct red 74
C.I. Direct red 74 Basic information
- Product Name:
- C.I. Direct red 74
- Synonyms:
-
- C.I. Direct red 74
- Direct Red 74
- C.I.Direct Red 74:C.I.22170
- CAS:
- 8003-75-6
- MF:
- C32H24N6O7S2.2Na
- MW:
- 714.69
- Mol File:
- Mol File
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C.I. Direct red 74 Chemical Properties
- EPA Substance Registry System
- C.I. Direct Red 74 (8003-75-6)
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C.I. Direct red 74 Usage And Synthesis
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first and 6-Aminonaphthalene-2-sulfonic acid and 7-Aminonaphthalene-2-sulfonic acid coupling, and then in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.
Properties and Applications
blue-ray red. Soluble in water for red jujube, and adequate soluble in ethanol in red. The strong sulfuric acid in blue, diluted red for sauce. The dye solution to join strong hydrochloric acid for Red sauce, precipitation; Add thick sodium hydroxide solution for orange brown.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 3 | 4 | 1 | 2 | 1-2 | ||
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C.I. Direct red 74(8003-75-6)Related Product Information
- Direct Red 73
- [2,6'-Bibenzothiazole]-7-sulfonic acid, 2'-[4-[(2-hydroxy-6-sulfo-1-naphthalenyl)azo]phenyl]-6-methyl-, disodium salt
- 7-[[[[4-(Acetylamino)phenyl]amino]carbonyl]amino]-4-hydroxy-3-[(2-methoxyphenyl)azo]-2-naphthalenesulfonic acid sodium salt
- 7-[[[[4-(Acetylamino)phenyl]amino]carbonyl]amino]-4-hydroxy-3-[(2-methylphenyl)azo]-2-naphthalenesulfonic acid sodium salt
- 4-Amino-3-[[4'-[(2,4-dihydroxyphenyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid sodium salt
- disodium 4-amino-3-[[4'-[(2-amino-6-sulphonatonaphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonate
- Direct Red 69
- BENZOPURPURIN 10B
- Direct red 72