5098-94-2 Usage
Uses
Used in Dye Industry:
4-[(2-methylphenyl)azo]naphthol is used as a dye for coloring various materials due to its intense red color. Its solubility in benzene and slight solubility in ethanol and acetone make it suitable for use in different applications.
Used in Textile Industry:
4-[(2-methylphenyl)azo]naphthol is used as a dye in the textile industry for coloring fabrics. Its light fastness and heat resistance properties make it suitable for use in textiles that are exposed to sunlight and heat during processing.
Used in Plastics and Polymers Industry:
4-[(2-methylphenyl)azo]naphthol is used as a colorant in the plastics and polymers industry to impart a red color to various plastic products. Its stability and compatibility with different polymers make it a popular choice for this application.
Used in Ink Industry:
4-[(2-methylphenyl)azo]naphthol is used as a pigment in the ink industry for creating red inks. Its light fastness and heat resistance properties ensure that the ink remains vibrant and stable over time.
Used in Coatings Industry:
4-[(2-methylphenyl)azo]naphthol is used as a pigment in the coatings industry for coloring paints and coatings. Its compatibility with various binders and solvents makes it suitable for use in different types of coatings.
Used in Paper Industry:
4-[(2-methylphenyl)azo]naphthol is used as a dye in the paper industry for coloring paper products. Its light fastness and heat resistance properties ensure that the color remains stable and vibrant over time.
Used in Cosmetics Industry:
4-[(2-methylphenyl)azo]naphthol is used as a colorant in the cosmetics industry for creating red shades in various cosmetic products such as lipsticks, blushes, and eyeshadows.
Used in Food Industry:
4-[(2-methylphenyl)azo]naphthol is used as a food dye to impart a red color to various food products. Its stability and compatibility with different food ingredients make it suitable for use in the food industry.
Used in Analytical Chemistry:
4-[(2-methylphenyl)azo]naphthol can be used as a reagent in analytical chemistry for the detection and quantification of certain metal ions, due to its ability to form colored complexes with these ions.
Used in Research and Development:
4-[(2-methylphenyl)azo]naphthol can be used in research and development for the synthesis of new azo dyes and pigments, as well as for studying the properties and applications of azo compounds.
Preparation
O-Methylaniline diazotization, and Naphthalen-1-ol coupling.
Standard
Light Fastness
Melting point
Stable
ISO
General
Check Digit Verification of cas no
The CAS Registry Mumber 5098-94-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,9 and 8 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 5098-94:
(6*5)+(5*0)+(4*9)+(3*8)+(2*9)+(1*4)=112
112 % 10 = 2
So 5098-94-2 is a valid CAS Registry Number.
InChI:InChI=1/C17H14N2O/c1-12-6-2-5-9-15(12)18-19-16-10-11-17(20)14-8-4-3-7-13(14)16/h2-11,18H,1H3/b19-16+
5098-94-2Relevant academic research and scientific papers
Nano-Fe3O4 encapsulated-silica supported boron trifluoride as a novel heterogeneous solid acid for solvent-free synthesis of arylazo-1-naphthol derivatives
Bamoniri, Abdolhamid,Moshtael-Arani, Naimeh
, p. 16911 - 16920 (2015/03/30)
Nano-Fe3O4 encapsulated-silica supported boron trifluoride (Fe3O4@SiO2-BF3) as a new type of green heterogeneous solid acid was prepared by the immobilization of BF3·Et2O on the surface of Fe3O4@SiO2 core-shell nanoparticles and characterized by Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), vibrating sample magnetometer (VSM), field emission-scanning electron microscope (FE-SEM), energy dispersive X-ray (EDS), and transmission electron microscope (TEM). Then, this super solid acid was used as an acidic reagent for the synthesis of aryl diazonium salts as a starting reactant, followed by its diazo coupling with 1-naphthol in a basic solvent-free medium at room temperature. The main advantages of this clean method were high yields, short reaction times, the possibility of performing it at room temperature, and no need of corrosive and toxic liquid acids and solvents. In addition, the long-term stability of aryl diazonium salts supported on Fe3O4@SiO2-BF3 magnetic nanoparticles (MNPs) at room temperature was one of the most important results of this procedure. This journal is
Facile synthesis of 1-naphthol azo dyes with nano Sio2/Hio4 under solvent-free conditions
Bamoniri, Abdolhamid,Pourali, Ali Reza,Nazifi, S. Mohamad Reza
, p. 439 - 445 (2013/12/04)
Nano-silica supported periodic acid (nano-SPIA) has been utilized as a heterogeneous reagent for a highly efficient and one pot synthesis of azo dyes based on 1-naphthol under solvent-free conditions at room temperature. This method has some advantages, the reaction workup is very easy and the catalyst can be easily separated from the reaction mixture and one-pot procedure. The related products have been obtained in good to excellent yields, high purity and short reaction times. The structures of the products have been characterized by several techniques using UV-Vis, FT-IR, 1H NMR, 13C NMR and mass spectra.
