5850-93-1 Usage
Preparation
5-Aminonaphthalene-1-sulfonic acid diazo, and Naphthalen-2-ol coupling.
Properties and Applications
red. Soluble in hot water for red, slightly soluble in cold water and ethanol. The strong sulfuric acid to red light purple, diluted precipitation is brown; In nitric acid solution for yellow brown; In a dilute sodium hydroxide solution for yellow brown solution. In water solution to join hydrochloric acid with brown precipitation; Add sodium hydroxide solution to become yellow.
Standard
Light Fastness
Soaping
Persperation Fastness
Oxygen bleaching
Fastness to seawater
Fading
Stain
Fading
Stain
Fading
Stain
ISO
2-3
2
1
3
1
1
2
3
Standard
Light Fastness
Fading
Stain
ISO
2-3
Check Digit Verification of cas no
The CAS Registry Mumber 5850-93-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,8,5 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5850-93:
(6*5)+(5*8)+(4*5)+(3*0)+(2*9)+(1*3)=111
111 % 10 = 1
So 5850-93-1 is a valid CAS Registry Number.
InChI:InChI=1/C20H14N2O4S.Na/c23-18-12-11-13-5-1-2-6-14(13)20(18)22-21-17-9-3-8-16-15(17)7-4-10-19(16)27(24,25)26;/h1-12,21H,(H,24,25,26);/q;+1/p-1/b22-20+;