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Disperse Orange 1

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Identification
Molecular formula
C17H19N4O
CAS number
2581-69-3
IUPAC name
4-(3,5-dimethyl-1-oxido-pyridin-1-ium-4-yl)azo-N,N-dimethyl-aniline
State
State

At room temperature, Disperse Orange 1 is in a solid state. As with many dyes, it is sold and handled in its solid form as a fine powder.

Melting point (Celsius)
168.00
Melting point (Kelvin)
441.15
Boiling point (Celsius)
225.00
Boiling point (Kelvin)
498.15
General information
Molecular weight
268.31g/mol
Molar mass
268.3080g/mol
Density
1.2090g/cm3
Appearence

Disperse Orange 1 is commonly available as an orange powder. The powder is finely divided, allowing it to be used effectively in dyeing processes, particularly in textiles. The vibrant orange color is a characteristic feature of this compound.

Comment on solubility

Solubility Characteristics

The compound 4-(3,5-dimethyl-1-oxido-pyridin-1-ium-4-yl)azo-N,N-dimethyl-aniline exhibits interesting solubility behavior that can be attributed to its unique chemical structure. Here are some key points about its solubility:

  • Polar Nature: The presence of the pyridinium group may enhance the solubility in polar solvents, particularly water, due to its ionic character.
  • Protonation: In solution, this compound can exist in a protonated state, which can significantly influence its solubility in different pH environments.
  • Hydrogen Bonding: The functional groups within the molecule can partake in hydrogen bonding, affecting interactions with solvents and potentially increasing solubility in certain media.
  • Solvent Dependence: Increased solubility is generally observed in solvents such as methanol and ethanol, which can stabilize ionic and polar species.

As a general guideline, the solubility of azo compounds can be quite variable and may depend heavily on the overall molecular interactions with the solvent. It's often beneficial to conduct empirical solubility tests to determine actual behavior in various solvents.


The intricate balance between hydrophilic and hydrophobic characteristics in this compound makes predicting solubility a complex yet fascinating aspect of its chemistry.

Interesting facts

Interesting Facts about 4-(3,5-Dimethyl-1-oxido-pyridin-1-ium-4-yl)azo-N,N-dimethyl-aniline

This compound is a fascinating example of an azo compound, characterized by the presence of the azo functional group (-N=N-). Azo compounds are well-known for their vibrant colors and are often used in dyes. Here are some interesting points about this particular compound:

  • Colorful Chemistry: Azo compounds are widely appreciated for their ability to produce vivid colors, making them invaluable in industries such as textiles, plastics, and art.
  • Biological Applications: Research has shown that some azo compounds can exhibit antimicrobial properties. They are of interest in medicinal chemistry for possible applications in drug development.
  • Structure-Activity Relationships: The unique structure of this compound, featuring both pyridinium and dimethyl amine groups, may influence its reactivity and interactions, making it a subject of interest in studies of structure-activity relationships.
  • Probes and Indicators: Azo compounds are often utilized as probes in various analytical techniques due to their colorimetric properties, offering a visual indication of chemical changes.
  • Environmental Considerations: While azo compounds have many beneficial uses, they can also pose environmental risks, particularly due to some azo dyes being potential carcinogens. Scientists continue to research safer alternatives and methods to synthesize and use these compounds responsibly.

In summary, the compound 4-(3,5-dimethyl-1-oxido-pyridin-1-ium-4-yl)azo-N,N-dimethyl-aniline exemplifies the intricate and colorful world of azo chemistry. Its blend of structural features creates vast potential for both practical applications and further research.

Synonyms
19456-77-0
3,5-LUTIDINE, 4-((p-(DIMETHYLAMINO)PHENYL)AZO)-, 1-OXIDE
NSC 170676
NSC170676
4-((p-(Dimethylamino)phenyl)azo)-3,5-lutidine 1-oxide
N,N-Dimethyl-4-(4'-(3',5'-lutidyl-1'-oxide)azo)aniline
N,N-Dimethyl-4-(4'-(3',5'-dimethylpyridyl-1'-oxide)azo)aniline
Benzenamine, 4-((3,5-dimethyl-4-pyridinyl)azo)-N,N-dimethyl-, N-oxide
NSC-170676
3, 4-[[p-(dimethylamino)phenyl]azo]-, 1-oxide