8003-51-8
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Basic information
- Product Name: C.I. Direct Brown 46
- Synonyms: C.I. Direct Brown 46
- CAS NO:8003-51-8
- Molecular Formula: C39H27 N7 O10 S2 . 3 Na
- Molecular Weight: 886.79
- EINECS: N/A
- Product Categories: N/A
- Mol File: 8003-51-8.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: C.I. Direct Brown 46(CAS DataBase Reference)
- NIST Chemistry Reference: C.I. Direct Brown 46(8003-51-8)
- EPA Substance Registry System: C.I. Direct Brown 46(8003-51-8)
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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: 8003-51-8(Hazardous Substances Data)
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8003-51-8 Usage
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, again with 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, its product to diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid?coupling.Properties and Applications
dark brown olive green light. Soluble in water for palm light olive, soluble in ethanol. The strong sulfuric acid in the navy for, for the shallow olive gray after diluted. The dye solution to join strong hydrochloric acid have Gray light purple precipitation; Add thick sodium hydroxide solution have orange brown precipitation. Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 3-4 3 2-3 2-3 2-3Standard
Acid ResistanceFading
StainISO
3-4Check Digit Verification of cas no
The CAS Registry Mumber 8003-51-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 8,0,0 and 3 respectively; the second part has 2 digits, 5 and 1 respectively.Calculate Digit Verification of CAS Registry Number 8003-51:
(6*8)+(5*0)+(4*0)+(3*3)+(2*5)+(1*1)=68
68 % 10 = 8
So 8003-51-8 is a valid CAS Registry Number.
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C.I. Direct Brown 46
