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Disperse Orange 3

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Identification
Molecular formula
C14H15N3
CAS number
730-40-5
IUPAC name
N-methyl-4-(p-tolylazo)aniline
State
State

N-methyl-4-(p-tolylazo)aniline is a solid at room temperature. It is typically used in its powdered form, particularly for dyeing applications.

Melting point (Celsius)
131.50
Melting point (Kelvin)
404.65
Boiling point (Celsius)
430.00
Boiling point (Kelvin)
703.15
General information
Molecular weight
225.29g/mol
Molar mass
225.2920g/mol
Density
1.3290g/cm3
Appearence

N-methyl-4-(p-tolylazo)aniline, also known as Disperse Orange 3, typically appears as an orange to reddish-orange solid powder. Its vibrant coloration is characteristic of azo dyes, which are commonly used in dyeing synthetic textiles.

Comment on solubility

Solubility of N-methyl-4-(p-tolylazo)aniline

N-methyl-4-(p-tolylazo)aniline, a compound with intriguing properties, exhibits a noteworthy solubility profile influenced by several factors. Understanding its solubility is crucial for applications in various chemical processes, including dye manufacture and analytical chemistry. Here are some key points regarding its solubility:

  • Polarity: Due to the presence of an amino group, N-methyl-4-(p-tolylazo)aniline may exhibit moderate polarity, affecting its interactions with solvents.
  • Solvent Compatibility: This compound is likely to be soluble in organic solvents, particularly non-polar or slightly polar solvents such as:
    • Ethyl acetate
    • Toluene
    • Dimethyl sulfoxide (DMSO)
  • Water Solubility: The solubility of N-methyl-4-(p-tolylazo)aniline in water is expected to be low due to its hydrophobic p-tolyl group, which diminishes overall solubility in aqueous environments.
  • Temperature Dependency: As with many organic compounds, solubility typically increases with temperature; therefore, increased temperatures might lead to enhanced solubility in solvents.
  • pH Influence: The solubility can also be influenced by the pH of the solution. Under acidic conditions, the amino group may become protonated, potentially increasing solubility.

In summary, while N-methyl-4-(p-tolylazo)aniline has limited water solubility, its compatibility with various organic solvents opens up avenues for diverse applications. As always, thorough solubility testing in specific solvents under defined conditions is crucial for determining practical usability.

Interesting facts

Interesting Facts about N-methyl-4-(p-tolylazo)aniline

N-methyl-4-(p-tolylazo)aniline is a fascinating compound that demonstrates the intricate relationship between chemical structure and function. This compound belongs to the class of azo compounds, known for their vibrant color properties, which find broad applications in various industries.

Key Highlights:

  • Azo Compounds: N-methyl-4-(p-tolylazo)aniline features an azo group (-N=N-), which is responsible for its intense color. Azo compounds are widely used as dyes in textiles and food due to this property.
  • Applications: Beyond dyes, this compound has applications in fields such as:
    • Biochemistry: Serving as indicators or reagents in various assays.
    • Chemical Research: Utilized in synthesizing other complex organic compounds.
    • Photochemistry: Exhibiting unique light absorption properties for potential use in light-sensitive materials.
  • Environmental Considerations: The environmental impact of azo dyes, including N-methyl-4-(p-tolylazo)aniline, is a significant area of research. Many azo dyes can be toxic or carcinogenic, leading to increased scrutiny of their use and the need for safer alternatives.

In the words of a renowned chemist, “The beauty of chemistry lies in its colors and reactions.” N-methyl-4-(p-tolylazo)aniline is a testament to this statement, highlighting how even a small modification in chemical structure can lead to vast changes in properties and potential applications. The study of such compounds not only enriches our knowledge of chemistry but also aids in the development of innovative solutions for modern challenges.

Synonyms
28149-22-6
N-Methyl-p-(p-tolylazo)aniline
BRN 1820050
N-Methyl-4'-methyl-p-aminoazobenzene
N-Methyl-4'-methyl-4-aminoazobenzene
ANILINE, N-METHYL-p-(p-TOLYLAZO)-
SCHEMBL5981971
SCHEMBL28233525
DTXSID401040134
Benzenamine, N-methyl-4-[2-(4-methylphenyl)diazenyl]-