41642-51-7 Usage
Preparation
2,6-Dibromo-4-nitroaniline diazo, and 3-Acetylamino-N,N-diethylaniline?coupling, and then replaced with reached bromine atoms.
Flammability and Explosibility
Notclassified
Properties and Applications
blue. Dark blue powder. In dyeing copper and iron ions were no change color. Used for polyester and their blended fabric dyeing, the dye color is gorgeous, lifting force is high, the sun and the sublimation fastness are better, and is suitable for high temperature and high pressure, the pure polyester/cotton dyeing and polyester melt knot dyeing, is more sensitive to temperature, hot melt temperature is higher, the color quantity is deep, defect is colored steep curve. For dyed three vinegar fiber an appropriate increase in dyeing temperature, than for polyester a red light. Acrylic dyeing to blu-ray gray.?Not dyed acetate fiber and nylon. Can be used to paint acrylic and cellulose triacetate fiber fabric direct printing, discharge printing can also make the background color. Suitable for dyeing and paint superfine printing.
Standard
Ironing Fastness
Light Fastness
Persperation Fastness
Washing Fastness
Fading
Stain
Fading
Stain
Fading
Stain
ISO
4-5
4
6
5
5
4-5
4
Standard
Ironing Fastness
Fading
Stain
ISO
4-5
Check Digit Verification of cas no
The CAS Registry Mumber 41642-51-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,6,4 and 2 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 41642-51:
(7*4)+(6*1)+(5*6)+(4*4)+(3*2)+(2*5)+(1*1)=97
97 % 10 = 7
So 41642-51-7 is a valid CAS Registry Number.
InChI:InChI=1/C20H19N7O3/c1-4-26(5-2)16-6-7-18(19(10-16)23-13(3)28)24-25-20-14(11-21)8-17(27(29)30)9-15(20)12-22/h6-10H,4-5H2,1-3H3,(H,23,28)
41642-51-7Relevant articles and documents
Preparation method of disperse blue
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Paragraph 0012; 0015, (2016/12/07)
The invention relates to a preparation method of disperse blue. The method comprises the following steps: (1) in a DMF (N,N-dimethylformamide) solvent, adding cuprous cyanide, adding sodium cyanide or zinc cyanide, and carrying out complexation to obtain a complex solution; (2) adding N-(2-((2,6-dibromo-4-nitrophenyl)azo)-5-(diethylamino)phenyl)acetamide into a DMF solvent, and dissolving by heating to obtain a filter cake solution; (3) slowly adding the complex solution into the filter cake solution, carrying out cyanation, cooling after the cyanation finishes, adding water to separate out cyanide, filtering, washing to obtain a disperse blue 165 coarse filter cake, mixing a mother solution and washing water, and adding sodium hyposulfite to remove toxins and recover the DMF; and (4) adding water, hydrochloric acid and ferric chloride into a toxic removal solution preparation pot to obtain a toxic removal solution, adding water and the disperse blue 165 coarse filter cake into a toxic removal pot, pulping, adding the toxic removal solution to perform toxic removal, filtering, and washing to obtain the disperse blue 165 filter cake. The method has the advantages of safe production technique, complete reaction, fewer side reactions and impurities, and high product quality.
Process for the manufacture of aromatic nitriles
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, (2008/06/13)
Process for the manufacture of aromatic nitriles by reacting an aromatic halogen compound with formaldoxime in the presence of a copper catalyst and an acid-binding agent, preferably a tertiary amine. Particularly applicable to replacement of halogen ortho to the azo linkage of an azo dyestuff by cyano.
