Sodium 7-phenyl-5,9-bis(phenylamino)-4,10-disulphonatobenzo[a]phenazinium, also known as Red Light Blue, is a red light blue powder that is easily soluble in water. It is also soluble in ethanol (for purple) and soluble fiber element, but insoluble in benzene and toluene. The strong sulfuric acid dyes are green, diluted into red light blue; in nitric acid, they are a deep violet color. The water-soluble form is blue, and upon the addition of sodium hydroxide, it turns red brown with precipitation; adding hydrochloric acid results in a purplish blue color with precipitation. In dyeing, iron ions turn dark colored, and copper ions also turn dark colored.
6378-88-7
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Basic information
- Product Name: sodium 7-phenyl-5,9-bis(phenylamino)-4,10-disulphonatobenzo[a]phenazinium
- Synonyms: sodium 7-phenyl-5,9-bis(phenylamino)-4,10-disulphonatobenzo[a]phenazinium;Benzoaphenazinium, 7-phenyl-5,9-bis(phenylamino)-4,10-disulfo-, inner salt, monosodium salt;Acid blue 59 (C.I. 50315);Benzo[a]phenazinium, 7-phenyl-5,9-bis(phenylamino)-4,10-disulfo-, hydroxide, inner salt, monosodium salt;7-Phenyl-5,9-bis(phenylamino)-4-sulfonato-10-sodiosulfobenzo[a]phenazin-7-ium;C.I.50315;C.I.Acid Blue 59;WOOL FAST BLUE BL(ACID BLUE 59)
- CAS NO:6378-88-7
- Molecular Formula: C34H23N4NaO6S2
- Molecular Weight: 670.68939
- EINECS: 228-955-0
- Product Categories: Organics
- Mol File: 6378-88-7.mol
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: /
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: sodium 7-phenyl-5,9-bis(phenylamino)-4,10-disulphonatobenzo[a]phenazinium(CAS DataBase Reference)
- NIST Chemistry Reference: sodium 7-phenyl-5,9-bis(phenylamino)-4,10-disulphonatobenzo[a]phenazinium(6378-88-7)
- EPA Substance Registry System: sodium 7-phenyl-5,9-bis(phenylamino)-4,10-disulphonatobenzo[a]phenazinium(6378-88-7)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 6378-88-7(Hazardous Substances Data)
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6378-88-7 Usage
Uses
Used in Textile Industry:Sodium 7-phenyl-5,9-bis(phenylamino)-4,10-disulphonatobenzo[a]phenazinium is used as a dye for wool, silk, polyamide fiber, and their blending fabrics. It is particularly influential in wool fabric dyeing and printing, directly impacting the color and appearance of the fabric.
Used in Leather Industry:
sodium 7-phenyl-5,9-bis(phenylamino)-4,10-disulphonatobenzo[a]phenazinium is also used in the leather industry for coloring, providing a vibrant and long-lasting color to leather products.
Used in Paint Industry:
Sodium 7-phenyl-5,9-bis(phenylamino)-4,10-disulphonatobenzo[a]phenazinium can be used as an organic pigment in the paint industry, particularly for heavy metal salt-based paints, enhancing their color and durability.
Standard:
sodium 7-phenyl-5,9-bis(phenylamino)-4,10-disulphonatobenzo[a]phenazinium adheres to various standards for light fastness, soaping, perspiration fastness, oxygen bleaching, and fastness to seawater, as follows:
Light Fastness: ISO 4, AATCC 3
Soaping: ISO 2-3, AATCC 2-3
Perspiration Fastness: ISO 2-3, AATCC 2-3
Oxygen Bleaching: ISO 4, AATCC 3-4
Fastness to Seawater: ISO 1, AATCC 1
Fading and Stain Resistance:
sodium 7-phenyl-5,9-bis(phenylamino)-4,10-disulphonatobenzo[a]phenazinium also demonstrates resistance to fading and staining, with ratings of ISO 4 and AATCC 4-5 for both fading and staining.
Preparation
6,8-Bis(phenylamino)naphthalene-1-sulfonic acidand 5-Amino-2-(phenylamino)benzenesulfonic acid condensation, its product to (add) ammonia of cuprous oxide as the catalyst for air oxidation.Standard
Light FastnessFading
StainISO
4AATCC
3Check Digit Verification of cas no
The CAS Registry Mumber 6378-88-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,3,7 and 8 respectively; the second part has 2 digits, 8 and 8 respectively.Calculate Digit Verification of CAS Registry Number 6378-88:
(6*6)+(5*3)+(4*7)+(3*8)+(2*8)+(1*8)=127
127 % 10 = 7
So 6378-88-7 is a valid CAS Registry Number.
InChI:InChI=1/C34H24N4O6S2.Na/c39-45(40,41)31-18-10-17-25-33(31)28(36-23-13-6-2-7-14-23)20-30-34(25)37-26-21-32(46(42,43)44)27(35-22-11-4-1-5-12-22)19-29(26)38(30)24-15-8-3-9-16-24;/h1-21H,(H3,35,36,39,40,41,42,43,44);/q;+1/p-1
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sodium 7-phenyl-5,9-bis(phenylamino)-4,10-disulphonatobenzo[a]phenazinium
