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Acid Orange 7

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Identification
Molecular formula
C16H11N2NaO4S
CAS number
633-96-5
IUPAC name
5-[4-[4-(2,6-diamino-3-methyl-5-sulfo-phenyl)azo-3-methyl-phenyl]-2-methyl-phenyl]azo-2-hydroxy-benzoic acid
State
State

At room temperature, Acid Orange 7 is typically found as a solid. It is stable under normal conditions and demonstrates good solubility in water.

Melting point (Celsius)
203.00
Melting point (Kelvin)
476.15
Boiling point (Celsius)
630.00
Boiling point (Kelvin)
903.15
General information
Molecular weight
452.44g/mol
Molar mass
452.4360g/mol
Density
1.4900g/cm3
Appearence

Acid Orange 7 appears as an orange to brown powder or granules. The color can vary slightly depending on its state of aggregation and purity level.

Comment on solubility

Solubility of 5-[4-[4-(2,6-diamino-3-methyl-5-sulfo-phenyl)azo-3-methyl-phenyl]-2-methyl-phenyl]azo-2-hydroxy-benzoic acid

The solubility of 5-[4-[4-(2,6-diamino-3-methyl-5-sulfo-phenyl)azo-3-methyl-phenyl]-2-methyl-phenyl]azo-2-hydroxy-benzoic acid is influenced by a variety of factors. Understanding these factors can help in predicting its behavior in different environments. Here are some key points regarding its solubility:

  • Polarity: Due to the presence of multiple functional groups like amino and sulfonic acid, this compound exhibits a relatively high polarity, which can enhance its solubility in polar solvents such as water.
  • Hydrogen Bonding: The hydroxyl (–OH) and amino (–NH2) groups can engage in hydrogen bonding, which may promote solubility in aqueous solutions.
  • Temperature Influence: Like many organic compounds, solubility tends to increase with temperature. Heating the solvent may facilitate better solvation of this complex structure.
  • pH Dependency: The ionization of the acidic group in various pH conditions significantly affects solubility. At lower pH, the acidic group remains protonated and solubility might decrease; conversely, at higher pH values, it may ionize, leading to increased solubility.

In conclusion, the solubility of this compound is quite nuanced and can vary significantly based on solvent choice, temperature, and pH level. As emphasized, understanding these interactions further aids in predicting solubility behavior in practical applications.

Interesting facts

Interesting Facts about 5-[4-[4-(2,6-diamino-3-methyl-5-sulfo-phenyl)azo-3-methyl-phenyl]-2-methyl-phenyl]azo-2-hydroxy-benzoic acid

This complex azo compound showcases the remarkable interplay between organic chemistry and dye technology. Azo compounds in general are characterized by the presence of the -N=N- group and are known for their vibrant colors and extensive applications in various fields.

Key Highlights:

  • Vibrant Applications: Due to their vivid colors, azo compounds are extensively used in the textile industry, particularly in dyeing fabrics. This specific compound could serve as a dye or pigment thanks to its azo linkage.
  • Medical Relevance: Some azo compounds exhibit biological activity. Research into azo derivatives is ongoing, as they may have implications in pharmaceuticals or therapeutics.
  • Environmental Concerns: The production and decomposition of azo dyes can release harmful substances. Understanding the breakdown products of this compound is crucial for evaluating its ecological impact.
  • Structural Diversity: The presence of multiple functional groups, such as sulfonic acid and hydroxyl groups, adds to the compound’s chemical reactivity, making it a fascinating topic for synthetic organic chemists.

Furthermore, the compound includes both amino and sulfonyl functionality, which not only enhance solubility in water but also introduce potential for further chemical modifications. A comprehensive understanding of its reactivity can pave the way for innovative uses in both material science and biomedical applications.

As one researcher aptly noted, “The beauty of azo compounds lies in their simplicity and complexity at the same time,” showcasing how a straightforward structure can lead to intricate applications and reactions within various chemical disciplines.

Synonyms
5-((4'-((2,6-Diamino-3-methyl-5-sulfophenyl)diazenyl)-3,3'-dimethyl[biphenyl]-4-yl)diazenyl)-2-hydroxybenzoic acid
741608-19-5
S7XX2ME599
DTXSID50859984
NCI-0047742
5-[2-[4'-[2-(2,6-Diamino-3-methyl-5-sulfophenyl)diazenyl]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]diazenyl]-2-hydroxybenzoic acid
Benzoic acid, 5-[2-[4'-[2-(2,6-diamino-3-methyl-5-sulfophenyl)diazenyl]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]diazenyl]-2-hydroxy-