6449-85-0 Usage
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first and (in bicarbonate media) 6-Amino-4-hydroxynaphthalene-2-sulfonic acid?coupling, and then and 4-Aminobenzenesulfonic acid diazo, and 4-Methylbenzene-1,3-diamine coupled to a product matches.
Properties and Applications
red light brown. Soluble in water for red light brown. In the dark for the strong sulfuric acid, diluted to red orange brown. The dye solution to join strong hydrochloric acid have red light brown precipitation; Add thick sodium hydroxide solution for red light orange brown.
Standard
Acid Resistance
Alkali Resistance
Light Fastness
Soaping
Water
Fading
Stain
Fading
Stain
ISO
4
4
3
2-3
3
Standard
Acid Resistance
Fading
Stain
ISO
4
Check Digit Verification of cas no
The CAS Registry Mumber 6449-85-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,4 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 6449-85:
(6*6)+(5*4)+(4*4)+(3*9)+(2*8)+(1*5)=120
120 % 10 = 0
So 6449-85-0 is a valid CAS Registry Number.