569-64-2 Usage
Chemical Properties
Green crystals. Soluble in water; ethyl,
methyl, and amyl alcohol.
Uses
A triphenylmethane dye with fungicidal and limited antiseptic activity. The term Malachine green applies to the oxalate as well as the chloride. Harmful if swallowed. Avoid release to the environment.
Definition
ChEBI: An organic chloride salt that is the monochloride salt of malachite green cation. Used as a green-coloured dye, as a counter-stain in histology, and for its anti-fungal properties in aquaculture.
Preparation
commonly known as Malachite Green. (a) in the presence of hydrochloric acid or sulfuric acid, Benzaldehyde ?(1 Moore) and N,N-dimethylaniline(2 Moore) condensation, and then used lamps and acid oxidation its products; (b) N,N-dimethylaniline and 1-(Trichloromethyl)benzene?heating.
General Description
Green crystals with metallic luster. Water solutions are blue-green. Used in dyeing silk, wool, biological staining, etc.
Reactivity Profile
Pigment Green 18 neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.
Hazard
Toxic by ingestion.
Properties and Applications
bright blue light green. Green belt flash crystallization. Soluble in cold water and hot water are blue-green, easily soluble in ethanol are blue-green. The strong sulfuric acid for yellow, diluted into dark orange; In nitric acid to orange, diluted into orange brown. The dye solution to join sodium hydroxide formation microstrip green white precipitation; Add hydrochloric acid to red light yellow. Used in acrylic, silk, wool, vinegar fiber dyeing, also used in leather, hemp, bamboo, wood, paper, shading, also used in the manufacture color amylum, solvent dye
Standard
Light Fastness
Persperation Fastness
Ironing Fastness
Soaping
Fading
Stain
Fading
Stain
Fading
Stain
ISO
3
4-5
4-5
4
5
4-5
4-5
AATCC
2-3
Standard
Light Fastness
Fading
Stain
ISO
3
AATCC
2-3
Check Digit Verification of cas no
The CAS Registry Mumber 569-64-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,6 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 569-64:
(5*5)+(4*6)+(3*9)+(2*6)+(1*4)=92
92 % 10 = 2
So 569-64-2 is a valid CAS Registry Number.
InChI:InChI:1S/C23H25N2.ClH/c1-24(2)21-14-10-19(11-15-21)23(18-8-6-5-7-9-18)20-12-16-22(17-13-20)25(3)4;/h5-17H,1-4H3;1H/q+1;/p-1
569-64-2Relevant articles and documents
Synthesis method of malachite green salt
-
, (2019/12/25)
The invention relates to a synthesis method of malachite green salt. The method completely abandons traditional synthesis methods in the prior art, and tries to adopt a brand new synthesis route. A Grignard reagent is prepared, and a nucleophilic addition is carried out to synthesize leucomalachite green, and it is accidentally found that the method has the advantages of very few byproducts, and very high yield of the product; the malachite green salt prepared from the synthesized leucomalachite contains few impurities, and can be used as a high-quality candidate for a malachite green standardsubstance; and compared with the traditional synthesis methods, the method of the invention has the advantages of mild reaction conditions, and simplicity in operation.
Carbenium ion-carbinol equilibration for basic triarylmethane dyes: Relative reactivities of dyes in aq. solutions
Gupta, Susanta K. Sen,Arvind, Udai
, p. 998 - 1000 (2007/10/02)
Equilibria and kinetics of carbenium ion-to-carbinol base reactions for a set of selected basic triarylmethane dyes in aq. buffer solutions of low ionic strength have been measured spectrophotometrically.Relative reactivities of the dyes towards nucleophilic attack by hydroxide ion, on the basis of both equilibrium constant and forward rate constant of the reaction, have been found to follow the same order: malachite green (MG)> brillant green (BG)>> Victoria pure blue BO(VB)> methyl violet (MV) = crystal violet (CV)> ethyl vioet (EV).A fairly good correlation between elec trophilicities of the dyes and ?R+ parameters of their 4-alkylamino substituents has been obtained
