6410-13-5

Usage

Uses

Used in Textile Industry:
Sudan I is used as a dye in the textile industry for coloring fabrics. Its bright red color and solubility in organic solvents make it suitable for dyeing various types of textiles.
Used in Plastics Industry:
In the plastics industry, Sudan I is used as a colorant to impart a vibrant red hue to plastic products. Its solubility in organic solvents allows for even distribution of the dye within the plastic matrix.
However, it is important to note that due to the health risks associated with Sudan I, its use in these industries is highly regulated and limited. Alternative dyes and colorants with lower toxicity and carcinogenic potential are preferred for use in consumer products to ensure safety and minimize health hazards.

InChI:InChI=1/C16H10ClN3O3/c17-11-6-7-13(14(9-11)20(22)23)18-19-16-12-4-2-1-3-10(12)5-8-15(16)21/h1-9,18H/b19-16-

Upstream product

• 27165-22-6 2-nitro-4-chlorobenzenediazonium cation 
• 135-19-3 β-naphthol 
• 89-63-4 4-Chloro-2-nitroaniline 

Relevant academic research and scientific papers

A quantitative one-pot synthesis method for industrial azo pigments with recyclable wastewater

Most industrial azo pigments are synthesized by diazotization in one pot and then coupling in another. This two-pot process has been transformed into a one-pot method by adding granular PTFE (polytetrafluoroethylene) to a mechanically agitated aqueous mixture of NaNO2, HCl, a diazo component and a coupling component. This method avoids the step of using a base or a surfactant to dissolve the coupling component. The reactions were fast and quantitative. The granular PTFE, wastewater and excess HCl were then reused 11 times without deteriorating the reaction rate and product purity. Altogether, 22 industrial pigments and 3 azo compounds were synthesized and the reaction can produce up to 22.7 g of product in the laboratory. Some reactions require less than 2 equiv. of HCl and a mechanism explaining this is proposed. In addition, an o-nitro group effect is advanced to explain the differences in coupling reaction rates for o-, m- and p-nitroaniline.

Method used for synthesizing azo compound using solid particle one kettle method

The invention relates to a method used for synthesizing an azo compound using solid particle one kettle method. The method comprises following steps: solid particles are introduced into a reaction container, an inorganic acid, an aromatic primary amine, sodium nitrite, water, and a coupling component are added, mechanism stirring is carried out, when the reaction is monitored to be finished, filtering and rinsing are carried out, and the obtained filter cake is a finished product; or the solid particles are introduced into the reaction container, the inorganic acid, the aromatic primary amine,sodium nitrite, and water are added, mechanical stirring is carried out, after complete conversion of the aromatic primary amine, the coupling component is added, mechanical stirring is carried out,when the reaction is monitored to be finished, filtering and rinsing are carried out, and the obtained filter cake is a finished product. The solid particles are preferably selected from polytetrafluoroethylene particles, haw seeds, or stainless steel sand. The solid particles are added into the reaction system to promote reaction, no pre-heating or alkali adding dissolving of diazo components orthe coupling component is needed; most reaction is finished in 1h; reaction time is short; product quality is high; and reaction filtrate and excess inorganic acid can be recycled for a plurality of times.

Disperse scarlet dye compound, preparation method therefor and application of disperse scarlet dye compound

The invention discloses a disperse scarlet dye compound, a preparation method therefor and an application of the disperse scarlet dye compound. The disperse scarlet dye compound has a structure represented by a formula (I) shown in the description, wherein R is alkyl, alkoxy, halogen, nitro, cyano, a formula shown in the description or -OCH2CH=CH2. The invention provides the application of the disperse scarlet dye compound in printing and dyeing of hydrophobic textile materials. The disperse scarlet dye compound is bright-colored and beautiful in color and luster and has excellent washing fastness and sublimation fastness.

Diazo-coupling reaction on ion-exchange resin support

Diazonium ions have been immobilized on a cation exchange resin and brought into reaction with suitable substrate to give azo compounds as the only product.Byproducts are absent and recovery of the products is simple.These diazocoupling reactions could be carried out in organic solvents and under neutral condition.