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Acid Orange 7

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Identification
Molecular formula
C16H17N3O2
CAS number
633-96-5
IUPAC name
2-[N-(2-hydroxyethyl)-4-phenylazo-anilino]ethanol
State
State

At room temperature, Acid Orange 7 exists as a solid. It is usually found in the form of a finely powdered orange substance that is stable under normal conditions.

Melting point (Celsius)
150.00
Melting point (Kelvin)
423.15
Boiling point (Celsius)
359.15
Boiling point (Kelvin)
632.30
General information
Molecular weight
278.32g/mol
Molar mass
278.3150g/mol
Density
1.2800g/cm3
Appearence

Acid Orange 7 is typically an orange powder. It is a synthetic azo dye used in various applications, which gives it a vivid orange color appearance. The solid dye can range from a bright orange to a more muted shade depending on purity and formulation.

Comment on solubility

Solubility of 2-[N-(2-hydroxyethyl)-4-phenylazo-anilino]ethanol

The compound 2-[N-(2-hydroxyethyl)-4-phenylazo-anilino]ethanol exhibits interesting solubility characteristics that are essential for its various applications. This molecule, which contains both hydrophilic (water-attracting) and hydrophobic (water-repelling) components, presents a unique solubility profile in different solvents.

Key Points on Solubility:

  • Polar Solvents: Due to the presence of the hydroxyl (-OH) group, this compound is expected to be soluble in polar solvents such as water and alcohols.
  • Non-Polar Solvents: The phenylazo group in the structure is more hydrophobic, which means that some degree of solubility can also occur in non-polar solvents, albeit to a lesser extent.
  • Concentration Effects: As is common with many organic compounds, the solubility may vary significantly with temperature and concentration.
  • pH Sensitivity: The solubility can be affected by the pH of the solution, especially due to the ionizable groups within the molecule.

Overall, the balance between hydrophilic and hydrophobic parts in 2-[N-(2-hydroxyethyl)-4-phenylazo-anilino]ethanol leads to a versatile solubility behavior, making it adaptable for different chemical environments. Understanding these solubility dynamics is crucial for its effective utilization in chemical processes and formulations.

Interesting facts

Interesting Facts about 2-[N-(2-hydroxyethyl)-4-phenylazo-anilino]ethanol

This compound is part of a class known as *azo dyes*, which are characterized by the presence of the azo group (-N=N-). Azo dyes are renowned for their vibrant colors and have a wide range of applications in various industries.

Key Features of 2-[N-(2-hydroxyethyl)-4-phenylazo-anilino]ethanol

  • Coloring Properties: Azo compounds are unique because they exhibit a rich spectrum of colors, making them ideal for use in textiles, food, and cosmetics.
  • Stability: The stability of azo dyes to light and heat is a major factor in their applications, allowing them to maintain color integrity even in challenging environments.
  • Functional Groups: The presence of hydroxyethyl and aniline groups contributes to the reactivity and solubility of this compound, which is crucial for its functionality in dye applications.
  • Biological Interest: Some azo compounds have been studied for their potential biological activities, leading to research into their effects on human health and the environment.

Moreover, the synthesis of azo dyes often involves the diazotization process, which can be both an engaging experiment and an important reaction in organic chemistry. As a student or scientist, experimenting with this compound might involve:

  1. Exploring different azo coupling reactions.
  2. Investigating the effects of different substituents on color properties.
  3. Testing for biological activities or potential toxicity.

Azo dyes represent a fascinating intersection of art and science, enabling creative expression while also showcasing complex chemical behavior. This compound, with its specific structure, serves as an excellent example of how molecular design can lead to functional and beautifully colored materials.

Synonyms
C.I. SOLVENT YELLOW 58
2452-84-8
2-[N-(2-hydroxyethyl)-4-phenyldiazenylanilino]ethanol
4-(Bis(2-hydroxyethyl)amino)azobenzene
NSC-260469
4-[Bis(2-hydroxyethyl)amino]azobenzene
Ethanol, 2,2'-[[4-(phenylazo)phenyl]imino]bis-
Ethanol, 2,2'-((4-(phenylazo)phenyl)imino)bis-
NSC 260469
5YPY3R7L4G
SCHEMBL1615340
SCHEMBL9644455
DTXSID80871871
NSC260469
DS-010856
N,N-Bis-hydroxyethyl-(4'-phenylazo)aniline
C.I. 11129
4-[N,N-bis (2-hydroxyethyl)-amino]azobenzene
Ethanol,2'-[[4-(phenylazo)phenyl]imino]bis-
Ethanol,2,2-[[4-(2-phenyldiazenyl)phenyl]imino]bis-
2,2'-[[4-(2-Phenyldiazenyl)phenyl]imino]bis[ethanol]
2-[(2-Hydroxyethyl)[4-(phenylazo)phenyl]amino]ethanol
Ethanol, 2,2'-[[4-(2-phenyldiazenyl)phenyl]imino]bis-
2,2'-{[4-(Phenyldiazenyl)phenyl]azanediyl}di(ethan-1-ol)
2,2'-((4-(Phenyldiazenyl)phenyl)azanediyl)bis(ethan-1-ol)
Ethanol, 2,2'-[[4-[(1E)-2-phenyldiazeno]phenyl]imino]bis-
2-[(2-hydroxyethyl)({4-[(1E)-2-phenyldiazen-1-yl]phenyl})amino]ethan-1-ol
1056963-21-3