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Methyl Orange

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Identification
Molecular formula
C14H15N3O
CAS number
547-58-0
IUPAC name
4-(4-methoxyphenyl)azo-N,N-dimethyl-aniline
State
State

At room temperature, Methyl Orange is found as a crystalline solid. It is stable under normal temperatures and pressures.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.15
Boiling point (Celsius)
327.00
Boiling point (Kelvin)
600.15
General information
Molecular weight
327.35g/mol
Molar mass
327.3500g/mol
Density
1.2800g/cm3
Appearence

Methyl Orange is typically an orange solid powder. It is commonly used as a pH indicator in titrations due to its distinct color change from red to yellow over a pH range of 3.1 to 4.4.

Comment on solubility

Solubility of 4-(4-methoxyphenyl)azo-N,N-dimethyl-aniline

4-(4-methoxyphenyl)azo-N,N-dimethyl-aniline, due to its azo structure and the presence of both methoxy and dimethyl groups, presents interesting solubility characteristics:

  • Solvent Polarity: This compound tends to exhibit greater solubility in polar solvents such as methanol or ethanol. The presence of the methoxy group enhances its ability to interact with polar solvent molecules.
  • Hydrophobic Nature: Conversely, its hydrophobic characteristics due to the aniline and azo motifs make it less soluble in non-polar solvents like hexane.
  • Common Applications: Its solubility properties are essential in fields like dye chemistry, where solubility influences the application of coloring agents.
  • Factors affecting Solubility: Factors such as temperature and pH can significantly influence the solubility behavior of this compound, often making it more soluble at elevated temperatures.

As a result, it is important to consider the balance between hydrophobic and hydrophilic interactions when predicting the solubility of 4-(4-methoxyphenyl)azo-N,N-dimethyl-aniline in various solvents. Understanding this solubility profile can enhance its applications in chemical formulations.

Interesting facts

Interesting Facts about 4-(4-methoxyphenyl)azo-N,N-dimethyl-aniline

4-(4-methoxyphenyl)azo-N,N-dimethyl-aniline, commonly referred to as a type of azo dye, is a fascinating compound with a variety of applications and implications in both scientific research and industry. Here are some intriguing details:

  • Azo Compounds: Azo compounds are characterized by the presence of the -N=N- azo group, which contributes to vibrant colors. The presence of the methoxy group and dimethylamino group enhances its color properties, making it valuable in dye chemistry.
  • Applications: This compound is widely used in the textile industry for dyeing fabrics, but it also has roles in cosmetics, plastics, and food coloring. Its ability to impart bright colors makes it a preferred choice in many applications.
  • Environmental Concerns: Some azo dyes have been linked to environmental pollution and health concerns due to their potential carcinogenic effects. As a result, many countries regulate the use of specific azo compounds, spurring the need for safer alternatives.
  • Chemical Reactions: This compound can undergo a variety of chemical transformations, including reduction to amines and coupling reactions, which are integral in synthesizing other dyes and pigment compounds.
  • Applications in Research: Beyond industrial uses, researchers study azo compounds for their unique properties, exploring potential uses in biological and pharmaceutical applications. They can serve as probes in biological systems or as intermediates in drug synthesis.
  • Color Stability: The structural attributes of 4-(4-methoxyphenyl)azo-N,N-dimethyl-aniline enhance its color fastness, which is a crucial property for dyes used in fabrics to withstand washing and exposure to light.

As the study of azo dyes continues to evolve, understanding compounds like 4-(4-methoxyphenyl)azo-N,N-dimethyl-aniline is critical not only for scientific advancement but also for addressing ecological and safety issues in various industries.

Synonyms
3009-50-5
4-(2-(4-Methoxyphenyl)diazenyl)-N,N-dimethylbenzenamine
4-[2-(4-Methoxyphenyl)diazenyl]-N,N-dimethylbenzenamine
4'-Methoxy-4-dimethylaminoazobenzene
4-[(4-methoxyphenyl)diazenyl]-N,N-dimethylaniline
BRN 0749612
CCRIS 8706
N,N-Dimethyl-p-(4-methoxyphenylazo)aniline
ANILINE, N,N-DIMETHYL-p-(4-METHOXYPHENYLAZO)-
4-(Dimethylamino)-4'-methoxyazobenzene
4-16-00-00497 (Beilstein Handbook Reference)
SCHEMBL5981957
DTXSID001043643
DTXSID601031199
azobenzene, 4-dimethylamino-4'-methoxy-
4-[(4-METHOXYPHENYL)AZO]-N,N-DIMETHYLBENZENAMINE
4-[(E)-(4-methoxyphenyl)diazenyl]-N,N-dimethylaniline
118527-20-1