79300-13-3

Basic information

• Product Name: Disperse Red 167-1
• Synonyms: C.I. Disperse Red 354;5'-(Bis(2-hydroxyethyl)amino)-2'-((2-chloro-4-nitrophenyl)azo)acetanilide, diacetate (ester);Acetamide, N-(5-(bis(2-(acetyloxy)ethyl)amino)-2-(2-(2-chloro-4-nitrophenyl)diazenyl)phenyl)-;Ccris 8991;Einecs 216-251-6
• CAS NO: 79300-13-3
• Molecular Formula: C22H24ClN5O7
• Molecular Weight: 505.90826
• Mol File: 79300-13-3.mol
• Article Data: 5

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Disperse Red 167-1(CAS DataBase Reference)
• NIST Chemistry Reference: Disperse Red 167-1(79300-13-3)
• EPA Substance Registry System: Disperse Red 167-1(79300-13-3)

Safety Data

• Hazardous Substances Data: 79300-13-3(Hazardous Substances Data)

Usage

General Description

Disperse Red 167-1 is a synthetic organic chemical used as a dye and colorant in various industries, including textiles, plastics, and printing. It is classified as a disperse dye, which means it is insoluble in water and is primarily used to color synthetic fibers such as polyester and acetate. This specific chemical is known for its vibrant red color and is commonly used in the production of textiles such as clothing, carpets, and upholstery. However, it is important to handle Disperse Red 167-1 with caution as it can potentially be harmful if it comes into direct contact with skin or is ingested.

Upstream product

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

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.