6226-76-2 Usage
Uses
Crocein Scarlet 7B is used in Crowle’s reagent. The reagent is needed for observing latent fingerprints, particularly bloody prints. Dyes and metabolites.
Preparation
2′,3-Dimethyl-4-amino-4′-sulfoazobenzene?diazo, and 7-Hydroxynaphthalene-1-sulfonic acid coupling.
Properties and Applications
red. Soluble in water for product red, soluble in ethanol for red orange. The strong sulfuric acid for blue, pink is diluted. In water solution to join strong hydrochloric acid for product red; Add thick sodium hydroxide solution for shallow red sauce.
Standard
Light Fastness
Soaping
Persperation Fastness
Oxygen bleaching
Fastness to seawater
Fading
Stain
Fading
Stain
Fading
Stain
ISO
5-6
2-3
2-3
2
1
2-3
Standard
Light Fastness
Fading
Stain
ISO
5-6
Check Digit Verification of cas no
The CAS Registry Mumber 6226-76-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,2 and 6 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 6226-76:
(6*6)+(5*2)+(4*2)+(3*6)+(2*7)+(1*6)=92
92 % 10 = 2
So 6226-76-2 is a valid CAS Registry Number.
InChI:InChI=1/C24H20N4O7S2.Na/c1-14-12-17(25-26-20-10-8-18(13-15(20)2)36(30,31)32)7-9-19(14)27-28-24-21(29)11-6-16-4-3-5-22(23(16)24)37(33,34)35;/h3-13,27H,1-2H3,(H,30,31,32)(H,33,34,35);/b26-25+,28-24+;
