6408-90-8 Usage
Description
ACID YELLOW 65 is a light yellow to dark red powder that is soluble in water, ethanol, slightly soluble in acetone and toluene. It is a strong sulfuric acid dye that produces a purple color. It has discharge properties and is medium in discharge sex.
Uses
Used in Textile Industry:
ACID YELLOW 65 is used as a dye for wool, silk, polyamide fiber, and wool blended fabrics for dyeing and printing. It is also used for silk direct discharge printing color.
Used in Leather Industry:
ACID YELLOW 65 is used for leather coloring.
Used in Soap Industry:
ACID YELLOW 65 can also be used for soap coloring.
Standard:
ACID YELLOW 65 has a light fastness rating of 4-5, soaping fastness rating of 3, perspiration fastness rating of 2, oxygen bleaching fastness rating of 5, and fastness to seawater rating of 4. It has a fading stain rating of 3 for both fading and staining.
Preparation
2-(4-Aminophenylamino)-5-nitrobenzenesulfonic acid diazotization, coupling with o-Cresol, and then use Benzenesulfonyl chloride?phenol hydroxyl esterified.
Standard
Light Fastness
Fading
Stain
ISO
4-5
Check Digit Verification of cas no
The CAS Registry Mumber 6408-90-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,0 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 6408-90:
(6*6)+(5*4)+(4*0)+(3*8)+(2*9)+(1*0)=98
98 % 10 = 8
So 6408-90-8 is a valid CAS Registry Number.
InChI:InChI=1/C25H20N4O8S2.Na/c1-17-15-20(11-14-24(17)37-39(35,36)22-5-3-2-4-6-22)28-27-19-9-7-18(8-10-19)26-23-13-12-21(29(30)31)16-25(23)38(32,33)34;/h2-16,26H,1H3,(H,32,33,34);/q;+1/p-1/b28-27+;
