C.I. Direct blue 49
C.I. Direct blue 49 Basic information
- Product Name:
- C.I. Direct blue 49
- Synonyms:
-
- 2,7-Naphthalenedisulfonic acid, 3,3'-((1,1'-biphenyl)-4,4'-diylbis(azo))bis(4,5-dihydroxy-, tetrasodium salt
- C.I. Direct blue 49
- C.I.Direct Blue 49:C.I.22540
- Direct Blue 49
- CAS:
- 6426-73-9
- MF:
- C32H23N4NaO16S4
- MW:
- 870.78
- Mol File:
- 6426-73-9.mol
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C.I. Direct blue 49 Chemical Properties
- EPA Substance Registry System
- C.I. Direct Blue 49 (6426-73-9)
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C.I. Direct blue 49 Usage And Synthesis
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid (2 Moore) coupled.
Properties and Applications
dark red light blue and red light navy. Soluble in water for deep purple, soluble in ethanol for purple. The strong sulfuric acid for green light blue, for purple diluted. The dye solution to join strong hydrochloric acid for deep blue purple; Add sodium hydroxide solution for dark purple.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 5 | 3-4 | 1-2 | 2 | 2-3 | ||
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C.I. Direct blue 49(6426-73-9)Related Product Information
- 1-Naphthalenesulfonic acid, 6,6'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-hydroxy-, disodium salt
- Azoform Brilliant Blue G
- Direct Blue 45
- 5-Amino-3-[[4'-[[6-amino-1-hydroxy-5-[(4-nitro-2-sulfophenyl)azo]-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxy-2,7-naphthalenedisulfonic acid tetrasodium salt
- 5-Amino-3-[[4'-[(6-amino-1-hydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2,7-disulfonic acid disodium salt
- PYRROLE BLUE
- amanil developed black bhsw
- Direct Blue 5
- 4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-3-[(2,5-dichlorophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid trisodium salt