82944-40-9 Usage
Description
3-[[2-[(N-Ethyl-N-phenylamino)sulfonyl]phenyl]azo]-4-hydroxy-1-naphthalenesulfonic acid sodium salt is a synthetic organic compound characterized by its brilliant red-orange color. It is known for its light fastness, soaping, perspiration fastness, and resistance to oxygen bleaching and seawater, making it suitable for various applications in different industries.
Uses
Used in Textile Industry:
3-[[2-[(N-Ethyl-N-phenylamino)sulfonyl]phenyl]azo]-4-hydroxy-1-naphthalenesulfonic acid sodium salt is used as a dye for coloring textiles. Its light fastness, soaping, and perspiration fastness properties make it an ideal choice for fabrics that require durability and resistance to fading.
Used in Cosmetic Industry:
3-[[2-[(N-Ethyl-N-phenylamino)sulfonyl]phenyl]azo]-4-hydroxy-1-naphthalenesulfonic acid sodium salt is used as a colorant in cosmetics, such as lipsticks and blushes, due to its vibrant red-orange hue and stability in various conditions.
Used in Printing Industry:
3-[[2-[(N-Ethyl-N-phenylamino)sulfonyl]phenyl]azo]-4-hydroxy-1-naphthalenesulfonic acid sodium salt is used as an ink additive for printing on various surfaces. Its resistance to oxygen bleaching and seawater makes it suitable for outdoor applications and materials that may come into contact with water.
Used in Plastics and Polymers Industry:
3-[[2-[(N-Ethyl-N-phenylamino)sulfonyl]phenyl]azo]-4-hydroxy-1-naphthalenesulfonic acid sodium salt is used as a colorant in the production of colored plastics and polymers. Its light fastness and stability properties ensure that the color remains vibrant and resistant to fading over time.
Preparation
2-Amino-N-ethyl-N-phenylbenzenesulfonamide diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid.
Standard
Light Fastness
Fading
Stain
ISO
6-7
Check Digit Verification of cas no
The CAS Registry Mumber 82944-40-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,9,4 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 82944-40:
(7*8)+(6*2)+(5*9)+(4*4)+(3*4)+(2*4)+(1*0)=149
149 % 10 = 9
So 82944-40-9 is a valid CAS Registry Number.