6426-64-8
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Basic information
- Product Name: Direct Violet 27
- Synonyms: Direct Violet 27;2,7-Naphthalenedisulfonic acid, 3-((4'-((6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-, trisodium salt;C.I. Direct violet 27
- CAS NO:6426-64-8
- Molecular Formula: C32H23 N5 O11 S3 . 3 Na
- Molecular Weight: 818.73
- EINECS: N/A
- Product Categories: N/A
- Mol File: 6426-64-8.mol
- Article Data: 0
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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: Direct Violet 27(CAS DataBase Reference)
- NIST Chemistry Reference: Direct Violet 27(6426-64-8)
- EPA Substance Registry System: Direct Violet 27(6426-64-8)
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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: 6426-64-8(Hazardous Substances Data)
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6426-64-8 Usage
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first with 4-Hydroxynaphthalene-2,7-disulfonic acid coupling, and then in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.Properties and Applications
purple. Soluble in water for red light purple, and adequate soluble in ethanol for product red. In the strong sulfuric acid as dark blue, diluted for purplish red color. The dye solution to join strong hydrochloric acid for purplish red color, have precipitation; Add thick sodium hydroxide solution for red wine. Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 3-4 4-5 2-3 1-2 1-2Standard
Acid ResistanceFading
StainISO
3-4Check Digit Verification of cas no
The CAS Registry Mumber 6426-64-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,2 and 6 respectively; the second part has 2 digits, 6 and 4 respectively.Calculate Digit Verification of CAS Registry Number 6426-64:
(6*6)+(5*4)+(4*2)+(3*6)+(2*6)+(1*4)=98
98 % 10 = 8
So 6426-64-8 is a valid CAS Registry Number.
6426-64-8Upstream product
6426-64-8Downstream Products
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Direct Violet 27
