6844-74-2 Usage
Preparation
(a) aniline diazo, and 8-(4-Methylphenylsulfonamido)-1-naphthol-3,6-disulfonic acid coupled; (b) aniline?diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidin alkaline conditions coupled, then and 4-Methylbenzene-1-sulfonyl chloride reacts amide sulfonylurea medications.
Properties and Applications
red. Soluble in water is blue light red, soluble in ethanol red, slightly soluble in acetone. Meet strong sulfuric acid in deep red, a muddy after diluted (red light purple); Nitric acid solution in orange. Used for wool, silk and polyamide fiber fabric dyeing and printing. Can also be used to electrochemical aluminum, paper, leather shading, and can be used to manufacture color pigment sediment.
Standard
Light Fastness
Soaping
Persperation Fastness
Oxygen bleaching
Fastness to seawater
Fading
Stain
Fading
Stain
Fading
Stain
ISO
5
3-4
5
3-4
1
3
3-4
2
AATCC
4-5
2
2
2
1
1
3-4
3-4
Standard
Light Fastness
Fading
Stain
ISO
5
AATCC
4-5
Check Digit Verification of cas no
The CAS Registry Mumber 6844-74-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,4 and 4 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 6844-74:
(6*6)+(5*8)+(4*4)+(3*4)+(2*7)+(1*4)=122
122 % 10 = 2
So 6844-74-2 is a valid CAS Registry Number.
InChI:InChI=1/C23H19N3O9S3.2Na/c1-14-7-9-17(10-8-14)36(28,29)26-19-13-18(37(30,31)32)11-15-12-20(38(33,34)35)22(23(27)21(15)19)25-24-16-5-3-2-4-6-16;;/h2-13,24,26H,1H3,(H,30,31,32)(H,33,34,35);;/q;2*+1/p-2/b25-22-;;
