6470-20-8 Usage
Uses
Used in Textile Industry:
Acid Orange 56 is used as a dye for wool, silk, and fiber dyeing and printing directly. It is known for its light fastness, soaping, perspiration fastness, and oxygen bleaching properties.
Used in Paper Industry:
Acid Orange 56 is used for paper coating, providing fastness to seawater and fading properties.
Used in Leather Industry:
Acid Orange 56 is used for leather shading, offering stain and fading resistance.
Standard:
The fastness and staining properties of Acid Orange 56 are measured using ISO and AATCC standards, with ratings ranging from 2 to 5.
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.
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-;;
