477-73-6 Usage
Chemical Properties
Dark red to violet powder
Uses
Different sources of media describe the Uses of 477-73-6 differently. You can refer to the following data:
1. A biological stain used to stain Gram negative bacteria, chromosomes, mucin, cartilage and mast cells. Dyes and metabolites, Environmental Testing
2. In forensics to visualize details of
cyanoacrylate-fumed friction ridges of human
digits.
Definition
A red dye that flu-
oresces when exposed to selected wavelengths of
light.
Preparation
commonly known as Safranine T. Such molecular ratio of 2-Methylbenzene-1 ,4-diamine, and O-Methylaniline oxidation, the resulting condensation product of aniline and purified by precipitation segmented dye, and then converted to the chloride.
Properties and Applications
bright blue light pink. Soluble in water for red, soluble in ethanol with yellow red fluorescent red. The strong sulfuric acid for green, diluted by blue to become red. The dye solution to join sodium hydroxide produce light brown red precipitate; Join the hydrochloric acid into blue purple. Used for paper making industry and color up manufacturing. Also used in acrylic, linen, silk products dyeing.
Standard( Cotton )
Light Fastness
Persperation Fastness
Ironing Fastness
Soaping
Fading
Stain
Fading
Stain
Fading
Stain
C
1-2
2
2-3
2-3
5
Standard( Cotton )
Light Fastness
Fading
Stain
C
1-2
Purification Methods
Crystallise it from *benzene/MeOH (1:1) or water. Dry it in vacuo over H2SO4. It has UV: at 520nm (H2O) and 530nm (EtOH). [Beilstein 25 H 403, 25 I 657, 25 III/IV
Check Digit Verification of cas no
The CAS Registry Mumber 477-73-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,7 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 477-73:
(5*4)+(4*7)+(3*7)+(2*7)+(1*3)=86
86 % 10 = 6
So 477-73-6 is a valid CAS Registry Number.
InChI:InChI=1/C20H18N4.ClH/c1-12-8-17-19(10-15(12)21)24(14-6-4-3-5-7-14)20-11-16(22)13(2)9-18(20)23-17;/h3-11H,1-2H3,(H3,21,22);1H