6227-02-7 Usage
Uses
Used in Textile Industry:
Direct Red 16 is used as a dye for coloring textiles. It is valued for its acid and alkali resistance, light fastness, and soaping properties, making it suitable for various textile applications.
Used in Leather Industry:
Direct Red 16 is used as a dye for coloring leather products. Its acid and alkali resistance, as well as light fastness, make it an ideal choice for leather goods.
Used in Paper Industry:
Direct Red 16 is used as a dye for coloring paper products. Its resistance to acid, alkali, and light, as well as its soaping properties, make it suitable for various paper applications.
The performance of Direct Red 16 is evaluated using ISO and AATCC standards, with ratings ranging from 1 to 4, indicating its level of resistance or fastness.
Preparation
aniline diazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupled its product to diazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.
Flammability and Explosibility
Nonflammable
Standard
Acid Resistance
Fading
Stain
ISO
4
AATCC
4
Check Digit Verification of cas no
The CAS Registry Mumber 6227-02-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,2 and 7 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 6227-02:
(6*6)+(5*2)+(4*2)+(3*7)+(2*0)+(1*2)=77
77 % 10 = 7
So 6227-02-7 is a valid CAS Registry Number.
InChI:InChI=1/C26H19N5O8S2.2Na/c27-16-6-8-19-14(10-16)12-21(40(34,35)36)24(25(19)32)31-29-18-7-9-20-15(11-18)13-22(41(37,38)39)23(26(20)33)30-28-17-4-2-1-3-5-17;;/h1-13,28-29H,27H2,(H,34,35,36)(H,37,38,39);;/q;2*+1/p-2/b30-23-,31-24+;;
