2391-30-2 Usage
Uses
Used in Textile Industry:
ACID YELLOW 7 is used as a dye for silk, cotton, and polyamide fibers, as well as for wool and silk fabric printing. It provides a vibrant yellow color to the fabrics and is known for its light fastness properties.
Used in Leather Industry:
ACID YELLOW 7 is used in leather dyeing, where it imparts a consistent and long-lasting yellow color to the leather products.
Used in Paper Industry:
ACID YELLOW 7 is used for paper dyeing, providing a bright yellow color to the paper and enhancing its visual appeal.
Used in Production of Fluorescent Pigments:
ACID YELLOW 7 is used in the production of fluorescent pigments, which are used in various applications such as markers, paints, and coatings.
Standard:
ACID YELLOW 7 has been tested for various properties, including light fastness, soaping, perspiration fastness, oxygen bleaching, and fastness to seawater. The ISO and AATCC ratings for these properties range from 1 to 3, with higher ratings indicating better performance.
Preparation
4-Amino-3-sulfo-1,8-naphthalic anhydride?with p-Methylaniline condensation.
Standard
Light Fastness
Fading
Stain
ISO
2
AATCC
2
Check Digit Verification of cas no
The CAS Registry Mumber 2391-30-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,3,9 and 1 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 2391-30:
(6*2)+(5*3)+(4*9)+(3*1)+(2*3)+(1*0)=72
72 % 10 = 2
So 2391-30-2 is a valid CAS Registry Number.
InChI:InChI=1/C19H14N2O5S/c1-10-5-7-11(8-6-10)21-18(22)13-4-2-3-12-16(13)14(19(21)23)9-15(17(12)20)27(24,25)26/h2-9H,20H2,1H3,(H,24,25,26)/p-1
