6470-97-9 Usage
Uses
Used in Textile Industry:
Disodium 5-[(4-nitro-2-sulphonatophenyl)azo]salicylate is used as a dye for the textile industry, specifically for coloring fabrics in the shade of orange. Its solubility in water and ethanol makes it an ideal choice for dyeing processes.
Used in Color Fastness Testing:
disodium 5-[(4-nitro-2-sulphonatophenyl)azo]salicylate is also utilized in the assessment of color fastness in textiles. It helps determine the performance of dyed fabrics under various conditions, such as exposure to light, perspiration, water, alkali, and acid. The standard ISO ratings for ironing, light, and fulling fastness are 3-5, 4, and 1, respectively, while the ratings for perspiration, soaping, water, alkali, and acid fastness are 3-4, 3-4, and 3-4.
Preparation
2-Amino-5-nitrobenzenesulfonic acid diazotization, and 2-Hydroxybenzoic acid?coupling.
Standard
Ironing Fastness
Alkali
Acid
ISO
3
Check Digit Verification of cas no
The CAS Registry Mumber 6470-97-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,7 and 0 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 6470-97:
(6*6)+(5*4)+(4*7)+(3*0)+(2*9)+(1*7)=109
109 % 10 = 9
So 6470-97-9 is a valid CAS Registry Number.
InChI:InChI=1/C13H9N3O8S.2Na/c17-11-4-1-7(5-9(11)13(18)19)14-15-10-3-2-8(16(20)21)6-12(10)25(22,23)24;;/h1-6,15H,(H,18,19)(H,22,23,24);;/q;2*+1/p-2/b14-7+;;
