2611-82-7 Usage
Chemical Properties
Deep red powder
Uses
Different sources of media describe the Uses of 2611-82-7 differently. You can refer to the following data:
1. Food Red No. 102 is an artificial coloring food additive. Dye.
2. Food Red No. 102 is an artificial coloring food additive. Dye. Dyes and metabolites, Environmental Testing
Preparation
4-Aminonaphthalene-1-sulfonic acid diazo, and 7-Hydroxynaphthalene-1,3-disulfonic acid coupling.
Flammability and Explosibility
Nonflammable
Safety Profile
Moderately toxic by
intraperitoneal route. Questionable
carcinogen with experimental tumorigenic
data. Mutation data reported. When heated
to decomposition it emits toxic fumes of NOx and SOx.
Properties and Applications
red. Red powder. Soluble in water red, slightly soluble in ethanol and soluble fiber element, insoluble in other organic solvents. Strong sulfuric acid in purple, will the red orange is diluted; Nitric acid solution in yellow. Its water solution and strong hydrochloric acid red, add sodium hydroxide is brown. Mainly used for wool, silk, polyamide fiber and its blended fabric dyeing, also can be used for leather, paper, plastic, wood, medicine and cosmetics of dyeing, still can make the ink.
Standard
Light Fastness
Soaping
Persperation Fastness
Oxygen bleaching
Fastness to seawater
Fading
Stain
Fading
Stain
Fading
Stain
ISO
4
2
3-4
2
1-2
3
AATCC
4
2
2
1
1
4
Standard
Light Fastness
Fading
Stain
ISO
4
AATCC
4
Purification Methods
Dissolve the dye in the minimum quantity of boiling water, filter and enough EtOH is added to precipitate ca 80% of the dye. This process is repeated until a solution of the dye in aqueous 20% pyridine has a constant extinction coefficient. [Beilstein 16 I 306.]
Check Digit Verification of cas no
The CAS Registry Mumber 2611-82-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,1 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 2611-82:
(6*2)+(5*6)+(4*1)+(3*1)+(2*8)+(1*2)=67
67 % 10 = 7
So 2611-82-7 is a valid CAS Registry Number.
InChI:InChI=1/C20H14N2O10S3.3Na/c23-16-7-5-11-9-12(33(24,25)26)10-18(35(30,31)32)19(11)20(16)22-21-15-6-8-17(34(27,28)29)14-4-2-1-3-13(14)15;;;/h1-10,21H,(H,24,25,26)(H,27,28,29)(H,30,31,32);;;/q;3*+1/p-3/b22-20+;;;
