6428-94-0

Basic information

• Product Name: DIRECTVIOLET32
• Synonyms: DIRECTVIOLET32;C.I.DIRECTVIOLET32;4-Amino-3-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-3,3'-dimethoxy-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid disodium salt;C.I.24105
• CAS NO: 6428-94-0
• Molecular Formula: C34H27 N5 O9 S2 . 2 Na
• Molecular Weight: 759.73
• Mol File: 6428-94-0.mol

Chemical Properties

• Boiling Point: 445.1°C at 760 mmHg
• Flash Point: 159.9°C
• Appearance: black solid
• Density: 1.196g/cm³
• Vapor Pressure: 1.06E-07mmHg at 25°C
• Refractive Index: 1.637
• Stability: Stable. Incompatible with strong oxidizing agents.
• CAS DataBase Reference: DIRECTVIOLET32(CAS DataBase Reference)
• NIST Chemistry Reference: DIRECTVIOLET32(6428-94-0)
• EPA Substance Registry System: DIRECTVIOLET32(6428-94-0)

Safety Data

• Hazardous Substances Data: 6428-94-0(Hazardous Substances Data)

Usage

Chemical Properties

black solid

Preparation

3,3′-Dimethoxylbenzidine double nitriding, respectively with the 4-Hydroxynaphthalene-1-sulfonic acid and 4-Aminonaphthalene-1-sulfonic acid matches.

General Description

Black solid.

Air & Water Reactions

Azo dyes can be explosive when suspended in air at specific concentrations. Slightly soluble in water.

Reactivity Profile

DIRECTVIOLET32 is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.

Fire Hazard

Flash point data for DIRECTVIOLET32 are not available. DIRECTVIOLET32 is probably combustible.

Properties and Applications

blue purple. Soluble in water for red light purple, soluble in ethanol for product red. The strong sulfuric acid for blue, blue for red after diluted. The dye solution to join strong hydrochloric acid for red light blue; Add thick sodium hydroxide solution for red wine. Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water Fading Stain Fading Stain ISO 2 1-2 1-2 1-2 1-2

Standard

Acid Resistance

Fading

Stain

ISO

2

InChI:InChI=1/C22H18N2O2/c1-15-6-5-7-16(14-15)21-23-20-9-4-3-8-19(20)22(24-21)26-18-12-10-17(25-2)11-13-18/h3-14H,1-2H3

Upstream product

• 6428-91-7 1-(4-fluorophenyl)-3-(pyridin-2-ylmethyl)urea 
• 6428-89-3 1,7-Dihydroxy-8-[[4'-[[2-hydroxy-3,6-bis(sodiosulfo)-1-naphthalenyl]azo]-3,3'-dimethoxy-1,1'-biphenyl-4-yl]azo]-4-(sodiosulfo)naphthalene-2-carboxylic acid sodium salt 
• 64288-66-0 (3Z)-3-[(4-methylphenyl)imino]-3H-1,2,4-dithiazol-5-amine hydroiodide 
• 6428-82-6 tetrasodium 2-[2-[(6-amino-5-chloro-1-hydroxy-3-sulfonato-2-naphthyl)azo]-5-[4-[(6-amino-5-chloro-1-hydroxy-3-sulfonato-2-naphthyl)azo]-3-(2-oxido-2-oxo-ethoxy)phenyl]phenoxy]acetate 
• 6428-81-5 disodium 4,4'-bis[(2-hydroxy-1-naphthyl)azo]-5,5'-dimethoxy[1,1'-biphenyl]-2,2'-disulphonate 
• 6428-80-4 1,1-dichloro-7-(4-fluorophenyl)-1a-(4-methoxyphenyl)-1,1a,7,7a-tetrahydrocyclopropa[b]chromene 
• 64287-99-6 2-(acetyloxy)-4,5-dibromocyclohexyl acetate 
• 6428-77-9 3,3'-[(3,3'-Dimethoxy-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[7-amino-4-hydroxy-2-naphthalenesulfonic acid]disodium salt 
• 6428-76-8 N-(4-chlorophenyl)-2-ethylbutanamide 
• 64287-36-1 N,1-diphenyl-1H-tetrazol-5-amine 
• 6428-72-4 N-{(2Z)-3-(4-fluorophenyl)-2-[(phenylcarbonyl)amino]prop-2-enoyl}tryptophan 
• 64287-19-0 4-FLUORO-3-METHOXYACETOPHENONE 
• 64287-18-9 1-(2,4-difluorophenyl)-4,4,4-trifluorobutane-1,3-dione 
• 64287-17-8 1-(2,4-DIFLUOROPHENYL)BUTANE-1,3-DIONE 

Downstream Products

• 64289-44-7 4-BroMo-3-(oxazolo[4,5-b]pyridin-2-yl)aniline 
• 6428-95-1 sodium 4-amino-5-hydroxy-6-[4-[4-(4-hydroxyphenyl)azo-3-methoxy-phenyl]-2-methoxy-phenyl]azo-naphthalene-1-sulfonate 
• 64289-51-6 2-(2-BroMo-5-nitrophenyl)oxazolo[4,5-b]pyridine 
• 64289-52-7 2-amino-5,5-diethylpyrimidine-4,6(1H,5H)-dione 
• 6428-96-2 1-(3,4-dichlorophenyl)-3-(pyridin-2-ylmethyl)urea 
• 6428-97-3 OXAMINE BLUE B 
• 6428-98-4 N-[4-chloro-3-(trifluoromethyl)phenyl]pyridine-4-carboxamide 
• 6428-99-5 disodium 5-hydroxy-6-[4-[4-[(1-hydroxy-5-sulfonato-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-naphthalene-1-sulfonate 
• 64290-27-3 potassium 6-methyl-2-(10H-phenothiazin-2-yl)quinoline-4-carboxylate 
• 6429-04-5 Tetrahydropapaverine hydrochloride 
• 6429-07-8 N-cyclooctyl-4-(2,4-dichlorophenoxy)butanamide 
• 64290-91-1 D-chiro-Inositol, 2-O-.alpha.-D-galactopyranosyl-4-O-methyl- 
• 6429-10-3 4-(2-CHLORO-ETHYL)-1H-IMIDAZOLE HCL 
• 642-91-1 2,1-BENZISOXAZOLE-3-CARBOXYLIC ACID