41642-51-7

Basic information

• Product Name: Disperse Blue 165
• Synonyms: Triasperse Blue 2BL-S.;2'-(2,6-Dicyano-4-nitrophenylazo)-5'-(diethylamino)acetanilide;2'-(2,6-Dicyano-4-nitrophenylazo)-5'-diethylaminoacetanilide;2'-(Acetylamino)-4-nitro-4'-(diethylamino)azobenzene-2,6-dicarbonitrile;C.I.11077;N-(2-((2,6-Dicyano-4-nitrophenyl)diazenyl)-5-(diethylamino)phenyl)acetamide;DISPERSE BLUE 165;n-(2-((4-nitro-2,6-dicyanophenyl)azo)-5-(diethylamino)phenyl)acetamide
• CAS NO: 41642-51-7
• Molecular Formula: C₂₀H₁₉N₇O₃
• Molecular Weight: 405.41
• EINECS: 255-473-8
• Product Categories: Dyes and Pigments;Organics
• Mol File: 41642-51-7.mol

Chemical Properties

• Boiling Point: 691.2 °C at 760 mmHg
• Flash Point: 371.8 °C
• Appearance: dark blue powder
• Density: 1.28 g/cm³
• Vapor Pressure: 5.94E-19mmHg at 25°C
• Refractive Index: 1.631
• PKA: 14.02±0.70(Predicted)
• CAS DataBase Reference: Disperse Blue 165(CAS DataBase Reference)
• NIST Chemistry Reference: Disperse Blue 165(41642-51-7)
• EPA Substance Registry System: Disperse Blue 165(41642-51-7)

Safety Data

• Hazardous Substances Data: 41642-51-7(Hazardous Substances Data)

Usage

Uses

Used in Textile Industry:
Disperse Blue 165 is used as a dye for polyester and its blended fabrics. It provides a gorgeous color, high lifting force, and better fastness to sun and sublimation. It is suitable for high-temperature and high-pressure dyeing processes, as well as pure polyester/cotton dyeing and polyester melt knot dyeing.
Used in Dyeing Acrylic and Cellulose Triacetate Fiber Fabrics:
Disperse Blue 165 is used as a dye for acrylic and cellulose triacetate fiber fabrics. It can be used for direct printing and discharge printing, as well as for creating background colors in superfine printing.
Standard:
Disperse Blue 165 meets the following standards for fastness:
Ironing Fastness: ISO 4-5
Light Fastness: ISO 4
Perspiration Fastness: ISO 6 (for staining) and ISO 5 (for fading)
Washing Fastness: ISO 5 (for staining) and ISO 4-5 (for fading)

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

Standard

Ironing Fastness

Fading

Stain

ISO

4-5

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)

Upstream product

• 6375-46-8 m-acetylamino-N,N-diethylanilne 
• 102-28-3 m-acetamide aniline 
• 108-45-2 m-phenylenediamine 
• 621-35-2 N-(3-aminophenyl)-acetamide hydrochloride 
• 33224-18-9 5-nitrobenzene-1,3-dicarbonitrile 
• 38177-07-0 5-nitro-1,3-benzenedicarboxamide 
• 618-88-2 5-nitrobenzene-1,3-dicarboxylic acid 
• 13438-30-7 5-nitro-1,3-benzenedicarbonylchloride 
• 20033-48-1 1-amino-2,6-dicyano-4-nitrobenzene 
• 544-92-3 copper(I) cyanide 
• 52583-53-6 N-[2-(2,6-Dibromo-4-nitro-phenylazo)-5-diethylamino-phenyl]-acetamide 

Relevant articles and documents

Preparation method of disperse blue

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.

Synthesis and Spectral Characterization of Blue Dyes of the Benzene Series

53 Donor-acceptor substituted azo dyes of the benzene series were prepared by diazonium-coupling reactions (1a-s) or halogen-cyanide exchange (->2a-x, 3a-j).Described are the preparation of the amines 4a-m and the coupling compounds 5a-t and the procedure of diazotizing and coupling.The colouristic and spectroscopic data show that compounds of the general formula 1 are excellent brilliant blue azo dyes usefull for dyeing polyester material.

Process for the manufacture of aromatic nitriles

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.

Process for the preparation of cyano azo dyestuffs

A process for preparing a cyano-azo dyestuff which is insoluble in water and has the formula: starting with a halogen-azo compound of formula: in which A denotes a benzenoid group containing a nitrile or halogen substituent(s) in ortho position with respect to the azo group; Hal represents an atom of halogen, and preferably bromine or chlorine; B denotes the radical of a coupling compound; and preferably a substituted para-aminoarylene radical; A and B are devoid of groups which confer solubility in water and may contain other substituents such as halogen, alkyl, alkoxy, aryl, aralkyl, nitro, cyano, trifluoroalkyl, sulfonyl, acylamino, acyl, secondary or tertiary amino, or an ester of a carboxylic acid; And n is 1 or 2, wherein a compound of formula (II) is reacted with an alkali cyanide, preferably sodium cyanide, in the presence of water, and further in the presence of a solvent formed by a sulfide of formula: where R and R', which may be the same or different, denote an alkylene radical having from 1 to 6 carbon atoms and having a straight or branched chain which may contain --O-- or --S-- bridge; m is 0 or 1; and in the presence of a catalyst constituted by a molecular combination between the sulfide of formula (III) and a cuprous salt.