6470-20-8 Usage
Preparation
2,2′-Disulfo-4,4,diaminobibenzene double nitriding, respectively, and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one and Naphthalen-2-ol coupling.
Properties and Applications
red light orange. Soluble in water for palm orange, soluble in ethanol for gold orange: the strong sulfuric acid for blood-red, diluted for orange brown. The dye solution to join strong hydrochloric acid have orange brown precipitation; Add thick sodium hydroxide solution for orange brown. Used for wool, silk and fiber dyeing and printing directly, also used for paper coating and leather shading.
Standard
Light Fastness
Soaping
Persperation Fastness
Oxygen bleaching
Fastness to seawater
Fading
Stain
Fading
Stain
Fading
Stain
ISO
3
4
3-4
4
2
4-5
4-5
AATCC
4
3-4
3-4
3
1
3-4
3-4
Standard
Light Fastness
Fading
Stain
ISO
3
AATCC
4
Check Digit Verification of cas no
The CAS Registry Mumber 6470-20-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,7 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 6470-20:
(6*6)+(5*4)+(4*7)+(3*0)+(2*2)+(1*0)=88
88 % 10 = 8
So 6470-20-8 is a valid CAS Registry Number.
InChI:InChI=1/C32H24N6O8S2.2Na/c1-19-30(32(40)38(37-19)23-8-3-2-4-9-23)35-33-21-12-14-25(28(17-21)47(41,42)43)26-15-13-22(18-29(26)48(44,45)46)34-36-31-24-10-6-5-7-20(24)11-16-27(31)39;;/h2-18,30,34H,1H3,(H,41,42,43)(H,44,45,46);;/q;2*+1/p-2/b35-33+,36-31-;;
