37372-50-2 Usage
Uses
Used in Textile Industry:
Direct Black 154 is used as a dye for coloring textiles, particularly in the production of black fabrics. Its acid and alkali resistance properties make it suitable for various dyeing processes, while its light fastness ensures the color remains vibrant even after exposure to sunlight.
Used in Leather Industry:
Direct Black 154 is used as a dye for coloring leather products, such as shoes, bags, and belts. Its acid and alkali resistance properties allow it to withstand the chemical treatments involved in leather processing, while its light fastness ensures the color remains stable over time.
Used in Paper Industry:
Direct Black 154 is used as a dye for coloring paper and paper products. Its acid and alkali resistance properties make it suitable for various paper manufacturing processes, while its light fastness ensures the color remains consistent even when exposed to sunlight.
Used in Cosmetics Industry:
Direct Black 154 can be used as a colorant in the cosmetics industry, particularly in the formulation of hair dyes and other color cosmetics. Its acid and alkali resistance properties make it suitable for use in various cosmetic formulations, while its light fastness ensures the color remains stable throughout the product's shelf life.
Used in Printing Industry:
Direct Black 154 is used as an ink component in the printing industry, providing a vibrant black color for various printing applications, such as newspapers, books, and packaging materials. Its acid and alkali resistance properties ensure the ink remains stable during the printing process, while its light fastness ensures the printed material maintains its color over time.
Preparation
3,3′-Dimethylbenzidine double nitriding, first and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, again with diazo of aniline coupling, finally and Benzene-1,3-diamine (a few phenol) coupled.
Standard
Acid Resistance
Fading
Stain
Check Digit Verification of cas no
The CAS Registry Mumber 37372-50-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,3,7 and 2 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 37372-50:
(7*3)+(6*7)+(5*3)+(4*7)+(3*2)+(2*5)+(1*0)=122
122 % 10 = 2
So 37372-50-2 is a valid CAS Registry Number.
InChI:InChI=1/C36H31N9O7S2.2Na/c1-19-14-21(8-11-27(19)41-43-29-13-10-24(37)18-26(29)38)22-9-12-28(20(2)15-22)42-44-34-30(53(47,48)49)16-23-17-31(54(50,51)52)35(36(46)32(23)33(34)39)45-40-25-6-4-3-5-7-25;;/h3-18,40H,37-39H2,1-2H3,(H,47,48,49)(H,50,51,52);;/q;2*+1/p-2/b43-41+,44-42+,45-35+;;
