6492-53-1 Usage
Description
5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt is an organic compound that exhibits unique color-changing properties in response to various chemical environments. It is characterized by its solubility in water, producing a golden yellow color, and its insolubility in ethanol. 5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt also demonstrates distinct color changes when exposed to concentrated sulfuric acid, dilution, hydrochloric acid, and sodium hydroxide solutions.
Uses
Used in Textile Industry:
5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt is used as a dye for textiles, providing vibrant and long-lasting colors to fabrics. Its application is due to its ability to produce a range of colors, such as golden yellow, green yellow, and golden brown, depending on the chemical environment.
Used in Color Fastness Testing:
In the textile industry, 5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt is also used for testing the color fastness of fabrics. It helps determine the resistance of the dye to various conditions, such as ironing, light exposure, perspiration, soaping, water, alkali, and acid, ensuring the durability and quality of the textile products.
Standard:
5,5'-[1,4-Phenylenebis(azo)]bis[2-hydroxy-3-sodiosulfobenzoic acid sodium] salt adheres to the ISO standard, with a rating of 5 for ironing and light fastness, and a rating of 4 for perspiration fastness. This indicates that the dye has a high level of resistance to these conditions, making it suitable for use in the textile industry.
Preparation
4-Nitrobenzenamine diazotization, and 2-Hydroxybenzoic acid?coupling ,?Reducing the nitro group, and then diazotization, coupling with 2-Hydroxybenzoic acid, and then sulfonated.
Standard
Ironing Fastness
Alkali
Acid
Check Digit Verification of cas no
The CAS Registry Mumber 6492-53-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,9 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 6492-53:
(6*6)+(5*4)+(4*9)+(3*2)+(2*5)+(1*3)=111
111 % 10 = 1
So 6492-53-1 is a valid CAS Registry Number.
InChI:InChI=1/C20H14N4O12S2.4Na/c25-17-13(19(27)28)5-11(7-15(17)37(31,32)33)23-21-9-1-2-10(4-3-9)22-24-12-6-14(20(29)30)18(26)16(8-12)38(34,35)36;;;;/h1-8,21-22H,(H,27,28)(H,29,30)(H,31,32,33)(H,34,35,36);;;;/q;4*+1/p-4/b23-11-,24-12+;;;;
