Solvent Red 24 CAS 85-83-6
solvent red 24 CAS 85-83-6solvent red 24 CAS 85-83-6

Solvent Red 24 CAS 85-83-6

solvent red 24 CAS 85-83-6, Solvent Red 24, CAS 85-83-6

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In the rich and colorful world of chemistry, there is a substance called solvent Red 24, which also has another well-known name - Sudan IV. Judging from its precise chemical name, it is defined as 1 - (2-methyl-4 - (2-methylphenylazo) phenylazo) -2-naphthol. This substance is essentially a chemical dye.

85-83-6

C24H20N4O

380.44

201-635-8

Solvent Red 24 CAS 85-83-6 Information


Chemical Name

Solvent Red 24

Other Name

Sudan IV; 1-(2-Methyl-4-(2-methylphenylazo)phenylazo)-2-naphthol

CAS

85-83-6

EINECS

201-635-8

Type

Dye intermediates; Plant extracts; Organic raw materials

Molecular Formula

C24H20N4O

Molecular Weight

380.44


Solvent Red 24 CAS 85-83-6 Properties


Melting point 

199 °C (dec.)(lit.)

Boiling point 

260°C

density 

1.1946 (rough estimate)

vapor pressure 

0Pa at 25℃

refractive index 

1.6000 (estimate)

storage temp. 

Flammables area

solubility 

Insoluble in water; soluble in benzene, methanol, acetone, isopropanol; slightly soluble in ethanol

Colour Index 

26105

pka

13.52±0.50(Predicted)

form 

Powder/Solid

color 

Red Brown

Water Solubility 

23μg/L at 25℃




What is Solvent Red 24 CAS 85-83-6?

In the rich and colorful world of chemistry, there is a substance called solvent Red 24, which also has another well-known name - Sudan IV. Judging from its precise chemical name, it is defined as 1 - (2-methyl-4 - (2-methylphenylazo) phenylazo) -2-naphthol. This substance is essentially a chemical dye. It should be made clear that it is by no means a food additive. There is an essential difference between the two.

An in-depth exploration of its chemical composition reveals that it contains a complex compound with a naphthalene ring structure. This unique structure endows it with specific chemical properties, enabling it to have wide applications in numerous fields. In terms of its category, this compound clearly falls within the category of chemical dyes. In the industrial field, it plays an important role and is mainly used in petroleum, engine oil and various other industrial solvents. When it is added to these solvents, it can significantly enhance the color of the solvents, making them more recognizable and practical. In addition, it also has a wide range of applications in daily necessities. For instance, in the process of shoe manufacturing, the use of solvent Red 24 can enhance the glossiness of the shoe surface, making the shoes look more lustrous. Similarly, in floor care, it can also play a similar role, making the floor radiate a charming luster.

Solvent Red 24 is also a liposoluble diazo dye. This characteristic makes it have unique application value in specific scientific research fields. When performing staining operations on frozen sections or paraffin sections, it can precisely stain lipids, triglycerides and lipoproteins, thereby helping researchers observe and study the distribution and state of these substances more clearly. However, its staining effect is not without selectivity. For substances such as starch and protein, it has no staining effect. This characteristic provides more precise staining methods for scientific research.

From the appearance, solvent Red 24 is a dark brown powder without odor. When the ambient temperature reaches 175 degrees, it will gradually soften and form lumps. Within the temperature range of 181 to 188 degrees, it will start to melt and decompose. When the temperature rises further to 260 degrees, it will decompose completely.

In terms of solubility, solvent Red 24 exhibits diverse characteristics among different solvents. It is soluble in chloroform and highly soluble in benzene. Meanwhile, it has good solubility in oil, fat, paraffin oil and phenol. However, it is only slightly soluble in ethanol and acetone, but almost insoluble in water. When it dissolves in alcohol or benzene, it will form a slightly purplish red solution. It is worth mentioning that when this alcohol solution comes into contact with sodium hydroxide, a wonderful color change occurs, turning into a red-purple color. In the environment of sulfuric acid, it will turn blue-green again. Moreover, when it is diluted, red precipitates will also form.

When solvent Red 24 enters the organism, it will undergo a series of complex metabolic processes. The main organs responsible for its metabolism are gastrointestinal microbiota reductase, liver, microsomes of extrahepatic tissues and cytoplasmic reductase. Under the action of these enzymes, it will be metabolized into the corresponding amine substances in the body. After numerous rigorous in vitro mutagenicity tests and animal carcinogenicity experiments, it was found that the mutagenicity and carcinogenicity exhibited by Sudan Red are closely related to the amine substances produced during the metabolic process.




Solvent Red 24 CAS 85-83-6 Uses


In the rich and colorful world of chemistry, there is a solvent-based dye that has attracted much attention - solvent Red 24. Its chemical name is 1 - (2-methyl-4 - (2-methylphenylazo) phenylazo) -2-naphthol. This complex and precise chemical naming reveals its unique molecular structure and composition.

Solvent Red 24 has a series of remarkable properties, among which particularly prominent are its excellent weather resistance and light resistance. Whether exposed to outdoor environments for a long time or exposed to prolonged light, it can maintain the stability of its own performance and is not prone to fading, decomposition and other phenomena. Moreover, the colors it presents are bright and pure, as if they were a brilliant hue carefully mixed by nature, giving people a strong visual impact.

For this reason, solvent Red 24 has extensive and important applications in many fields. In terms of plastic coloring, it has truly demonstrated its prowess. It is widely used for transparent or opaque coloring of various thermoplastic plastics. Whether it is plastic products that need to show a transparent texture or opaque plastic products that pursue a solid effect, solvent Red 24 can perfectly handle them. Not only that, it is also applicable to the coloring of various plastics such as polyester, nylon and engineering materials. For a common plastic material like polyester, solvent Red 24 can be evenly dispersed in it, endowing it with bright colors. After being colored with solvent Red 24, nylon materials not only have beautiful colors but also can maintain good physical properties. After the engineering materials are added with the solvent Red 24, they can also have an excellent appearance while meeting the requirements such as high strength and high toughness.

In addition to the common plastics mentioned above, the solvent Red 24 can also be used for coloring plastics such as polystyrene, organic glass, ABS resin, polymethyl methacrylate resin, acetate fiber and polyvinyl chloride. In polystyrene products, it can add unique color charm to the products. Under the action of the solvent Red 24, the transparency and color of acrylic glass are perfectly combined. After being colored, materials such as ABS resin and polymethyl methacrylate resin can better display rich visual effects. Plastics such as cellulose acetate and polyvinyl chloride can also meet the diverse color demands of different industries when dyed with the solvent Red 24.

Furthermore, solvent Red 24 also performs well in the coloring of polyester fiber pulp. It can penetrate deep into the fibers, making the pulp present uniform and bright colors, providing a good foundation for subsequent processing and use. Meanwhile, in the coloring fields of paints and ballpoint pen inks, the solvent Red 24 also plays an important role. In paint, it can endow the coating with good covering power and color saturation. In ballpoint pen ink, it can ensure smooth writing and bright, lasting handwriting colors. Moreover, this product has stable performance and can always maintain reliable quality under different usage environments and conditions.

Another substance worthy of attention is Sudan IV. Sudan IV is a liposoluble diazo dye and has unique application value in scientific research and the medical field. It can be used to stain lipids, triglycerides and lipoproteins on frozen or paraffin sections. In biological and medical research, by staining these substances, researchers can observe their distribution, morphology and changes more clearly, thereby providing important basis for the diagnosis and treatment of diseases as well as the study of biological processes.

In terms of oil dyeing, Sudan Red IV can be replaced by Oil Red O. Oil Red O is also an effective dye. Under certain specific experimental conditions and requirements, it can play a similar role to Sudan Red IV, providing convenience for the detection and analysis of oils.

It is worth mentioning that Sudan IV is not only applied in the dyeing field but also can be used to make high-temperature thermometers. By taking advantage of its special physical and chemical properties, it can accurately measure temperature in high-temperature environments, providing a reliable temperature monitoring method for some industrial production, scientific research and other activities that need to be carried out under high-temperature conditions.

Some other special uses of solvent Red 24 have also been discovered. For example, it is used to promote wound healing. In medical research and clinical practice, solvent Red 24 May have a positive impact on wound repair and regeneration through a certain specific mechanism of action, providing a new idea and method for wound treatment. In addition, it can also be used as a biological dye, helping researchers in fields such as cell biology and molecular biology to observe and analyze biological samples more clearly. Meanwhile, solvent Red 24 can also be used as a dye and metabolite for environmental testing. The detection and analysis of relevant substances in the environment can provide important data support for environmental protection and pollution control.

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