129038-03-5

Basic information

• Product Name: Disperse Yellow 232
• Synonyms: 252-722-2; 3-(5-Chloro-1,3-benzoxazol-2-yl)-7-(diethylamino)-2H-chromen-2-one
• CAS NO: 129038-03-5
• Molecular Weight: 0
• EINECS: 252-722-2
• Mol File: 129038-03-5.mol

Chemical Properties

• Boiling Point: 575.4°C at 760 mmHg
• Flash Point: 301.8°C
• Appearance: /
• Density: 1.354g/cm³
• Vapor Pressure: 3.03E-13mmHg at 25°C
• Refractive Index: 1.663
• CAS DataBase Reference: Disperse Yellow 232(CAS DataBase Reference)
• NIST Chemistry Reference: Disperse Yellow 232(129038-03-5)
• EPA Substance Registry System: Disperse Yellow 232(129038-03-5)

Safety Data

• Hazardous Substances Data: 129038-03-5(Hazardous Substances Data)

Usage

Uses

Used in Textile Industry:
Disperse Yellow 232 is used as a coloring agent for dyeing synthetic fibers such as polyester, nylon, and acrylic. Its high fastness properties ensure that the color remains vibrant and resistant to fading, staining, and wear, even under harsh conditions.
Used in Plastic Industry:
Disperse Yellow 232 is also used as an additive in the plastics industry to impart a bright yellow color to various plastic products. Its high fastness properties make it suitable for use in products that are exposed to sunlight, heat, and other environmental factors.
Used in Ink Industry:
In the ink industry, Disperse Yellow 232 is used as a pigment to create high-quality, long-lasting inks for printing on various substrates. Its excellent light and heat stability ensure that the printed colors remain vibrant and resistant to fading over time.
Used in Paint Industry:
Disperse Yellow 232 is utilized as a pigment in the paint industry to produce high-quality, durable paints with a bright yellow color. Its high fastness properties make it suitable for use in both indoor and outdoor applications, where the paint may be exposed to sunlight, heat, and other environmental factors.

Standard

Ironing Fastness

Fading

Stain

AATCC

4-5

InChI:InChI=1/C20H17ClN2O3/c1-3-23(4-2)14-7-5-12-9-15(20(24)26-18(12)11-14)19-22-16-10-13(21)6-8-17(16)25-19/h5-11H,3-4H2,1-2H3

Upstream product

• 17754-90-4 4-(Diethylamino)salicylaldehyde 
• 105-53-3 diethyl malonate 
• 95-85-2 2-hydroxy-5-chloro-aniline 
• 105-56-6 ethyl 2-cyanoacetate 

Relevant articles and documents

Mild and efficient prepare disperse yellow 184, disperse yellow 232 and their analogues via LTTM promoted three-component reaction

A convenient protocol for the synthesis of disperse yellow 184, disperse yellow 232 and their analogues via a three-component one-pot reaction of salicylaldehyde, o-aminophenol and ethyl cyanoacetate has been established. Cheap and eco-friendly ethanol was employed as solvent. One drop of low-transition-temperature mixture (LTTM) which formed from l(?)-Proline and oxalic acid could smoothly promote the reaction of 0.5 mmol raw materials. Compared to the classical methodologies, the present pathway has broad reaction scope and affords all products in good to excellent yields. Furthermore, this process could reduce the reaction temperature from 135 to 85 °C and avoid the problems associated with catalyst cost, handling, safety and pollution. On the basis of comparative experiments and DFT calculation, possible mechanism of this strategy is discussed in detail.

Glycerol and acetic acid assisted mild strategy for facile synthesis of 3-heteroarylcoumarins via three-component reaction

A feasible and inexpensive reaction system for synthesis of 3-benzoxazol-2-yl-chromen-2-one as a kind of 3-heteroarylcoumarins has been developed. Both acetic acid and glycerol are simple, cheap and common chemicals, the combination of them could smoothly accelerate the three-component one-pot reaction of salicylaldehyde, o-aminophenol and ethyl cyanoacetate to yield 3-heteroarylcoumarins. This process not only offers the products in good to excellent yields but also avoids the problems associated with catalyst cost, handling, safety and pollution. Compared with the literature, the reaction temperature successfully reduced to 80?°C. As an application, disperse yellow 232 was furnished with a satisfactory yield under optimum reaction conditions. In addition, all synthesized 3-heteroarylcoumarins were preliminary evaluated the inhibitory effect against human carboxylesterase 1. This protocol offers an expedient strategy for efficient synthesis of 3-heteroarylcoumarins that are widely present in biologically active compounds and fluorescent paints.

One-pot catalyst-free synthesis of 3-heterocyclic coumarins

3-Heterocyclic coumarins were prepared in one-pot three-component reaction without catalyst. The mixture of salicylaldehydes, ethyl cyanoacetate, and o-aminophenols or o-phenylenediamines in refluxing n-butanol gave title compounds with good yields and hi

Microwave-promoted one-pot syntheses of coumarin dyes

To one pot synthesis of coumarins with benzimidazol or benzoxazol moieties, three different microwave irradiations based procedures are reported here which take place within a few minutes. In spite of fairly well yield of the products using solvent free procedures, 25-30% further yields were achieved within 3 minutes at 110C using 2mL n-pentanol as solvent.