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Pigment Orange 5

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Identification
Molecular formula
C17H14N2O2
CAS number
3468-63-1
IUPAC name
1-(2-methoxy-5-methyl-phenyl)azonaphthalen-2-ol
State
State

At room temperature, Pigment Orange 5 is a solid.

Melting point (Celsius)
255.00
Melting point (Kelvin)
528.15
Boiling point (Celsius)
542.00
Boiling point (Kelvin)
815.15
General information
Molecular weight
294.33g/mol
Molar mass
294.3270g/mol
Density
1.3806g/cm3
Appearence

Pigment Orange 5 appears as an orange-red powdery substance. It is commonly used as a pigment in various applications due to its bright color properties.

Comment on solubility

Solubility of 1-(2-methoxy-5-methyl-phenyl)azonaphthalen-2-ol

The solubility of 1-(2-methoxy-5-methyl-phenyl)azonaphthalen-2-ol is a topic of interest due to its unique chemical structure. Generally, the solubility of a compound is influenced by the following factors:

  • Polarity: Polar compounds tend to dissolve well in polar solvents like water, whereas non-polar compounds are better soluble in non-polar solvents.
  • Molecular Interactions: Hydrogen bonding, Van der Waals forces, and dipole-dipole interactions can significantly impact solubility.
  • Functional Groups: The presence of certain functional groups, such as hydroxyl (-OH) or methoxy (-OCH3), can enhance solubility in polar solvents.

For 1-(2-methoxy-5-methyl-phenyl)azonaphthalen-2-ol, the presence of the methoxy group suggests that it may have some degree of solubility in polar solvents. This can be attributed to the potential for hydrogen bonding with water molecules. However, the relatively bulky naphthalene structure might hinder its overall solubility.

Interestingly, “like dissolves like”: this principle indicates that compounds similar in polarity are more likely to be soluble in one another. Hence, it is important to consider the specific solvent systems when evaluating the solubility of this compound. Testing in a variety of solvents may yield more insight into its solubility profile.

In summary, while predicting solubility can sometimes be straightforward, it often requires experimental verification due to the complex interplay of molecular structure and solvent characteristics.

Interesting facts

Interesting Facts about 1-(2-Methoxy-5-methyl-phenyl)azonaphthalen-2-ol

This compound is a fascinating example of azo chemistry, which is characterized by the presence of the azo group (−N=N−). Azo compounds are widely studied due to their vibrant colors and applications in various fields, particularly in dye manufacturing.

Key Features and Applications

  • Dye Industry: This compound is significant in the production of dyes. Azo dyes are known for their vivid hues and stability, making them popular in textiles and inks.
  • Biological Studies: Researchers are exploring the potential biological activities of azo compounds, including anti-cancer and anti-inflammatory properties that could lead to novel therapeutic agents.
  • Colorimetric Applications: The unique absorption properties of this compound lend itself to use in colorimetric assays, where the color change indicates a reaction or the presence of specific analytes.

Chemical Reactions

Due to the presence of both azo and hydroxyl groups, this compound can participate in a variety of chemical reactions, such as:

  • Nucleophilic substitutions: The hydroxyl group can engage in nucleophilic attack, opening up pathways for further synthetic transformations.
  • Oxidation-reduction reactions: The azo linkage allows for interesting redox behavior, which is essential in organic synthesis and evaluating reactivity in different environments.

Final Thoughts

The exploration of 1-(2-methoxy-5-methyl-phenyl)azonaphthalen-2-ol not only illustrates the intricate beauty of azo compounds but also highlights the importance of interdisciplinary approaches, bridging chemistry, biology, and materials science. Research continues to uncover new applications and properties, showcasing the vibrant world of chemical compounds.

Synonyms
6410-20-4
1-[2-(2-Methoxy-5-methylphenyl)diazenyl]-2-naphthalenol
1-(2-(2-Methoxy-5-methylphenyl)diazenyl)-2-naphthalenol
1-[(2-Methoxy-5-methylphenyl)diazenyl]naphthalen-2-ol
1-((2-Methoxy-3-methylphenyl)azo)-2-naphthol
GWDHYAASZOWIJD-UHFFFAOYSA-N
DTXSID201203893
EINECS 229-095-9