Skip to main content

Acid Orange 7

ADVERTISEMENT
Identification
Molecular formula
C16H11N2NaO4S
CAS number
633-96-5
IUPAC name
4-amino-3-[4-[4-[(1-amino-4-sulfo-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-naphthalene-1-sulfonic acid
State
State

At room temperature, Acid Orange 7 is typically found in a solid state as a powder.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.15
Boiling point (Celsius)
900.00
Boiling point (Kelvin)
1 173.15
General information
Molecular weight
452.39g/mol
Molar mass
452.3800g/mol
Density
0.9800g/cm3
Appearence

Acid Orange 7 appears as an orange to red-orange color powder when in its solid state. This synthetic azo dye is commonly used in industries for coloring purposes.

Comment on solubility

Solubility of 4-amino-3-[4-[4-[(1-amino-4-sulfo-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-naphthalene-1-sulfonic acid

The solubility of 4-amino-3-[4-[4-[(1-amino-4-sulfo-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-naphthalene-1-sulfonic acid is influenced by several factors due to its complex structure. This compound, being an azo dye, exhibits specific characteristics regarding its solubility:

  • Polarity: The presence of multiple sulfonic acid groups greatly enhances the polarity of this compound, which typically facilitates its solubility in polar solvents such as water.
  • Aqueous Solubility: Given its sulfonic acid groups, it is expected to be highly soluble in aqueous solutions, particularly under acidic conditions.
  • Organic Solvents: It may have limited solubility in organic solvents, particularly non-polar ones, due to its hydrophilic nature.
  • Temperature Impact: Solubility can also be affected by temperature, with increased temperatures potentially leading to an increase in solubility.

In summary, the solubility characteristics of this compound make it suitable for various applications, especially in environments where aqueous properties are necessary. Understanding these aspects is critical for its practical use in chemical formulations and reactions.

Interesting facts

Interesting Facts about 4-Amino-3-[4-[4-[(1-amino-4-sulfo-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-naphthalene-1-sulfonic Acid

This intriguing compound belongs to the class of azo dyes, characterized by their vibrant coloration due to the azo functional group (-N=N-). Azo dyes are extensively utilized in various industries, particularly in textiles and inks, making them significant in material science.

Key Features

  • Applications: The compound finds applications in textile dyeing, as well as in the production of pigments for inks and plastics.
  • Significance of the Azo Group: The azo group not only contributes to the compound's color but also can impart various reactive properties useful in synthetic chemistry.
  • Environmental Considerations: The usage of azo dyes often raises environmental concerns due to potential toxicity, emphasizing the importance of responsible use and regulation within the chemical industry.

Chemical Structure Insights

With a complex structure featuring multiple functional groups and substitutions, this compound showcases the versatility found in azo chemistry. The presence of both naphthalene rings and methoxy groups enhances its absorption properties, influencing its solubility and interaction with other substances. As a student of chemistry, one might observe:

  • The role of naphthalene units in enhancing dye strength.
  • The influence of sulfonic acid groups on the water solubility and stability of the dye.
  • The ability to potentially modify the compound by varying the substituents for specific applications.

As noted by chemists in the field, “Understanding the relationship between structure and properties is crucial in the design of effective dyes.” This compound is a testament to that principle, illustrating how intricate molecular design can lead to functional materials that are pivotal in industrial applications.

Synonyms
C.I. Direct Red 7
25188-28-7
4-amino-3-[(E)-[4-[4-[(E)-(1-amino-4-sulfo-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo]naphthalene-1-sulfonic acid
NSC638361
SCHEMBL19154349
SCHEMBL23787619
DTXSID90863040
1-Naphthalenesulfonic acid, 3,3'-[(2,2'-dimethoxy-4,1- biphenyl)bis(azo)]bis[4-amino-
1-Naphthalenesulfonic acid, {3,3'-[(2,2'-dimethoxy-4,1-} {biphenyl)bis(azo)]bis[4-amino-,} disodium salt