1533-78-4

Basic information

• Product Name: Disperse Red 167:1
• Synonyms: 2'-Chloro-4'-nitro-4-[bis(2-acetoxyethyl)amino]-2-(acetylamino)azobenzene;2-[[3-acetamido-4-(2-chloro-4-nitro-phenyl)diazenyl-phenyl]-(2-acetyloxyethyl)amino]ethyl ethanoate;2-[3-acetamido-N-(2-acetyloxyethyl)-4-(2-chloro-4-nitrophenyl)diazenylanilino]ethyl acetate;acetic acid 2-[3-acetamido-N-(2-acetoxyethyl)-4-(2-chloro-4-nitro-phenyl)azo-anilino]ethyl ester;DISPERSE RED 167:1;c.i. 11338:1;n-[5-[bis[2-(acetyloxy)ethyl]amino]-2-[(2-chloro-4-nitrophenyl)azo]phenyl]-acetamide;2,2'-[[3-acetamido-4-[(2-chloro-4-nitrophenyl)azo]phenyl]imino]diethyl diacetate
• CAS NO: 1533-78-4
• Molecular Formula: C₂₂H₂₄ClN₅O₇
• Molecular Weight: 505.90826
• EINECS: 216-251-6
• Product Categories: Dyes and Pigments;Organics
• Mol File: 1533-78-4.mol
• Article Data: 5

Chemical Properties

• Melting Point: 127°C
• Boiling Point: 707.2°Cat760mmHg
• Flash Point: 381.5°C
• Appearance: /
• Density: 1.36
• Vapor Pressure: 7.59E-20mmHg at 25°C
• Refractive Index: 1.6
• PKA: 14.17±0.70(Predicted)
• CAS DataBase Reference: Disperse Red 167:1(CAS DataBase Reference)
• NIST Chemistry Reference: Disperse Red 167:1(1533-78-4)
• EPA Substance Registry System: Disperse Red 167:1(1533-78-4)

Safety Data

• Hazardous Substances Data: 1533-78-4(Hazardous Substances Data)

Usage

Description

Disperse Red 167:1 is a deep red powder that exhibits strong resistance to the impact of copper and iron ions on its colored light. It is suitable for dyeing at a pH value of 4 to 5 and is particularly effective for high-temperature and high-pressure dyeing methods. However, it may not perform well with carrier dyeing methods, resulting in poor color levelness and performance.

Uses

Used in Textile Industry:
Disperse Red 167:1 is used as a dye for various types of fibers, including polyester and acetate fibers. It provides a slightly yellowish color to polyester and a color similar to polyester when dyeing acetate fibers, although the dyeing rate is lower. It is not suitable for dyeing acrylic fibers.
Used in Printing Industry:
Disperse Red 167:1 is used for direct printing on polyester and can also be used for discharge printing on polyester/cotton blends with a shallow background.

Preparation

2-Chloro-4-nitrobenzenamine diazo, and 3-Acetamido-N,N-bis(2-acetoxyethyl)benzeneamine?coupling.

Flammability and Explosibility

Notclassified

Standard

Ironing Fastness

Fading

Stain

ISO

5

InChI:InChI=1/C22H24ClN5O7/c1-14(29)24-22-13-17(27(8-10-34-15(2)30)9-11-35-16(3)31)4-7-21(22)26-25-20-6-5-18(28(32)33)12-19(20)23/h4-7,12-13H,8-11H2,1-3H3,(H,24,29)

Upstream product

• 27059-08-1 3-(N,N-di(acetyloxyethyl)amino)-N-phenylacetamide 
• 121-87-9 2-Chloro-4-nitroaniline 
• 68391-43-5 2C₆H₃ClN₃O₂⁽¹⁺⁾*O₄S^(2-) 

Relevant articles and documents

Continuous coupling process for ester-based azo disperse dye

The invention belongs to the technical field of fine chemical preparation, and particularly relates to a continuous coupling process for an ester-based azo disperse dye. The process includes the stepsthat 1, a coupling component compound containing an ester group or a coupling component mixture containing a compound and an aqueous solution A are simultaneously and continuously added into a mixerfor mixing; 2, a diazonium salt solution and an aqueous solution B are simultaneously and continuously added into another mixer for mixing adjustment; 3, the two raw materials obtained above are mixedand subjected to a reaction at equal moles to obtain a coupling reaction product; 4, the coupling reaction product continuously enters another reactor, and continuous material discharging, suction filtration, washing to neutrality and drying are performed to obtain a disperse dye compound. Through continuous improvement of conventional intermittent coupling reaction processes in a step-by-step mode, the coupling temperature of an easily hydrolyzable coupling component compound under acidic conditions is increased, the dependency on a refrigerant is reduced, the coupling reaction time is greatly shortened at the same time, the hydrolysis of coupling components is reduced, the product yield is increased, the production efficiency is improved, and the COD of mother liquor wastewater is reduced.

Preparation method of azo compounds

The invention discloses a preparation method of azo compounds. The preparation method of the azo compounds comprises the following steps: (1) in a sulfuric acid aqueous solution with the mass concentration being 60 to 80 percent by weight, performing diazo-reaction on a compound 4 and nitrosyl sulfuric acid to prepare a mixture containing diazo salt as shown in a formula 2, and performing coupling reaction on the mixture and a compound 3 to obtain a compound 1. The method is mild in reaction condition and environmentally-friendly. (The formula is as shown in the description).

Preparation method of ester group-containing azo disperse dye

The invention discloses a preparation method of an ester group-containing azo disperse dye. The method comprises the following steps: carrying out a coupling reaction on a diazo salt and a coupling component, adding an alkali to the above obtained azo compound material system after the coupling reaction is completed in order to adjust the pH value of the system to 5-7, carrying out heating crystal transformation, and post-processing to obtain a dye filter cake. The pH value of the system is adjusted to 5-7 after the coupling reaction and before the crystal transformation, so hydrolysis of ester groups in the dye product is avoided, the yield of the dye product is improved, and the content of organic matters in wastewater is reduced, thereby the wastewater post-treatment difficulty is reduced.