8004-59-9 Usage
Preparation
4-Amino-2,6-naphthalenedisulfonic acid?and 4-Aminonaphthalene-2,7-disulfonic acid diazo, and Naphthalen-1-amine coupling, its product to diazo, and Naphthalen-1-amine coupling.
Properties and Applications
black. Soluble in water and ethanol is a deep red. The strong sulfuric acid in blue or black for ash, after diluted red purple precipitation. In water solution to join strong hydrochloric acid is a deep red; Add thick sodium hydroxide solution for deep red.
Standard
Light Fastness
Soaping
Persperation Fastness
Oxygen bleaching
Fastness to seawater
Fading
Stain
Fading
Stain
Fading
Stain
ISO
3-4
3-4
2
4
4
2-3
3-4
1-2
Standard
Light Fastness
Fading
Stain
ISO
3-4
Check Digit Verification of cas no
The CAS Registry Mumber 8004-59-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 8,0,0 and 4 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 8004-59:
(6*8)+(5*0)+(4*0)+(3*4)+(2*5)+(1*9)=79
79 % 10 = 9
So 8004-59-9 is a valid CAS Registry Number.