4787-93-3 Usage
Uses
Used in Textile Industry:
ACID RED 8 is used as a dye for coloring textiles, providing a vibrant red color that is suitable for various fabric types. Its light fastness, soaping, perspiration fastness, and resistance to oxygen bleaching and seawater make it a reliable choice for long-lasting color in garments and other textile products.
Used in Colorant Industry:
ACID RED 8 serves as a colorant in various applications, such as inks, paints, and coatings, due to its ability to produce a range of red and orange shades. Its solubility in water and ethanol allows for easy incorporation into different formulations, and its resistance to fading and staining ensures consistent color quality over time.
Used in Analytical Chemistry:
ACID RED 8 can be employed as an indicator in analytical chemistry, taking advantage of its color-changing properties in response to pH variations. This makes it useful for titrations and other chemical analyses that require pH-sensitive indicators.
Preparation
2,4-Dimethylbenzenamine diazo, coupled with 4-Hydroxynaphthalene-2,7-disulfonic acid.
Standard
Light Fastness
Fading
Stain
ISO
5
Check Digit Verification of cas no
The CAS Registry Mumber 4787-93-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,8 and 7 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 4787-93:
(6*4)+(5*7)+(4*8)+(3*7)+(2*9)+(1*3)=133
133 % 10 = 3
So 4787-93-3 is a valid CAS Registry Number.
InChI:InChI=1/C18H16N2O7S2.2Na/c1-10-3-6-15(11(2)7-10)19-20-17-16(29(25,26)27)9-12-8-13(28(22,23)24)4-5-14(12)18(17)21;;/h3-9,19H,1-2H3,(H,22,23,24)(H,25,26,27);;/q;2*+1/p-2/b20-17+;;
