85-83-6 Usage
Chemical Properties
dark red to brown crystals or powder
Uses
Different sources of media describe the Uses of 85-83-6 differently. You can refer to the following data:
1. Solvent Red 24 has been used to promote wound healing and biological stain.
2. Fat stain.
3. It has been used to promote wound healing. Biological stain. Dyes and metabolites, Environmental Testing.
Definition
ChEBI: A bis(azo) compound that is 2-naphthol substituted at position 1 by a {2-methyl-4-[(2-methylphenyl)diazenyl]phenyl}diazenyl group. A fat-soluble dye predominantly used for demonstrating triglycerides in frozen sections, but which may also stain some protei
bound lipids in paraffin sections.
General Description
Sudan IV is a hydrophobic azo dye. It stains triglycerides and imparts an intense red color. The dye does not stain lipid droplets or phospholipids.
Flammability and Explosibility
Notclassified
Safety Profile
Questionable carcinogen with experimental tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.
Properties and Applications
red to blue light red. Red powder, resistance to 5% of hydrochloric acid and sodium carbonate solution. Insoluble in water, soluble in ethanol and acetone, soluble in benzene. In concentrated sulfuric acid to blue light green, dilution have red precipitation. Mainly used in acetate fiber, organic glass, ABS resin, rigid polyvinyl chloride (PVC) and so on the many kinds of plastic coloring, and can also be used to paint and ballpoint ink color, also can be used for polyester fiber colouring.
Standard
Light Fastness
Heat-resistant(℃)
water
Sodium Carbonate(5%)
Hydrochloric acid(5%)
Melting point
Stable
ISO
Good
184-185
120
Insoluble
No change
No change
Standard
Light Fastness
Melting point
Stable
ISO
Good
Purification Methods
Crystallise the dye from EtOH/water or acetone/water. [Beilstein 16 IV 249.]
Check Digit Verification of cas no
The CAS Registry Mumber 85-83-6 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 5 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 85-83:
(4*8)+(3*5)+(2*8)+(1*3)=66
66 % 10 = 6
So 85-83-6 is a valid CAS Registry Number.
InChI:InChI=1/C24H20N4O/c1-16-7-3-6-10-21(16)26-25-19-12-13-22(17(2)15-19)27-28-24-20-9-5-4-8-18(20)11-14-23(24)29/h3-15,29H,1-2H3/b26-25+,28-27+
85-83-6Relevant articles and documents
A CONTINUOUS PROCESS FOR THE SYNTHESIS OF AZO DYES INVOLVING IN-SITU GENERATION OF DIAZONIUM SALTS
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Paragraph 0051; 0059, (2021/05/21)
The present disclosure provides a continuous process for the synthesis coupled compounds of diazonium salts including azo dyes involving in-situ generation of diazonium salts. It further discloses a set up to carry out the process for the synthesis of coupled compounds of diazonium salts.