3025-77-2 Usage
Preparation
4-Nitrobenzenamine diazotization, and Naphthalen-2-amine coupling.
General Description
Dull reddish blue to reddish violet solid or dark maroon powder.
Air & Water Reactions
Dust can be explosive when suspended in air at specific concentrations. Insoluble in water.
Reactivity Profile
1-[(4-nitrophenyl)azo]naphthalen-2-amine 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 1-[(4-nitrophenyl)azo]naphthalen-2-amine are not available. 1-[(4-nitrophenyl)azo]naphthalen-2-amine is probably combustible.
Properties and Applications
dark blue light red to dark red light purple. From ethanol to crystallize in the product is golden needle crystal, melting point 185.5 ℃ soluble in ethanol, acetone and toluene. In concentrated sulfuric acid to red light blue, dilution after magenta to red solution, there are red brown precipitation; In concentrated sodium hydroxide solution insoluble.
Standard
Light Fastness
Heat-resistant(℃)
water
Sodium Carbonate(5%)
Hydrochloric acid(5%)
Melting point
Stable
ISO
Poor
185.5
Well
Standard
Light Fastness
Melting point
Stable
ISO
Poor
Check Digit Verification of cas no
The CAS Registry Mumber 3025-77-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,0,2 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 3025-77:
(6*3)+(5*0)+(4*2)+(3*5)+(2*7)+(1*7)=62
62 % 10 = 2
So 3025-77-2 is a valid CAS Registry Number.
InChI:InChI=1/C16H12N4O2/c17-15-10-5-11-3-1-2-4-14(11)16(15)19-18-12-6-8-13(9-7-12)20(21)22/h1-10H,17H2/b19-18+
3025-77-2Relevant articles and documents
A simple route to 2-aryl-substituted naphtho[2,1-e][1,2,4]triazinium and naphtho[2,1-e][1,2,3,4]tetrazinium salts from 1-arylazo-substituted 2-naphthylamines
Yu, Xiuling,Metz, Peter,Hartmann, Horst
, p. 431 - 435 (2018/06/18)
1-Arylazo-substituted 2-naphthylamines, which are easily obtainable by the coupling of arene diazonium salts with 2-aminonaphthalene-sulfonic acid, can be transformed by reaction with reactive carboxylic acid derivatives or nitrosation reagents into novel 2-aryl-substituted naphtho[2,1-e][1,2,4]triazinium and naphtho[2,1-e][1,2,3,4]tetrazinium salts, respectively.
