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Acid Orange 7

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Identification
Molecular formula
C16H11N2NaO4S
CAS number
633-96-5
IUPAC name
4-[3-[2-methyl-4-(p-tolylsulfonyloxy)phenyl]azoanilino]-3-nitro-benzenesulfonic acid
State
State

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

Melting point (Celsius)
208.00
Melting point (Kelvin)
481.15
Boiling point (Celsius)
695.00
Boiling point (Kelvin)
968.15
General information
Molecular weight
350.32g/mol
Molar mass
350.3200g/mol
Density
1.4600g/cm3
Appearence

Acid Orange 7 typically appears as a reddish-brown powder. It is a synthetic azo dye used for dyeing wool, silk, and nylon. When dissolved, it imparts a bright orange color to solutions.

Comment on solubility

Solubility of 4-[3-[2-methyl-4-(p-tolylsulfonyloxy)phenyl]azoanilino]-3-nitro-benzenesulfonic acid

The solubility of 4-[3-[2-methyl-4-(p-tolylsulfonyloxy)phenyl]azoanilino]-3-nitro-benzenesulfonic acid, with the chemical formula C16H11N2NaO4S, can be influenced by various factors due to its unique structure. Understanding its solubility characteristics is crucial for applications in chemical formulations and industrial processes.

Key Aspects of Solubility:

  • Polar Characteristics: The presence of sulfonic acid and sodium ions typically enhances the compound's solubility in water due to their polar nature.
  • Hydrophobic Interactions: The aromatic rings and -p-tolylsulfonyloxy group may lead to some hydrophobic interactions, potentially affecting solubility in non-polar solvents.
  • pH Dependence: The solubility can vary significantly with pH; as a sulfonic acid, it may become more soluble at higher pH values when deprotonated.
  • Temperature Effects: Elevated temperatures often increase solubility for many compounds, including azo and sulfonic acid derivatives.

In conclusion, while 4-[3-[2-methyl-4-(p-tolylsulfonyloxy)phenyl]azoanilino]-3-nitro-benzenesulfonic acid is expected to exhibit good solubility in aqueous solutions, its overall behavior in different solvents will depend on the complex interplay of its chemical functionalities.

Interesting facts

Interesting Facts about 4-[3-[2-methyl-4-(p-tolylsulfonyloxy)phenyl]azoanilino]-3-nitro-benzenesulfonic acid

This compound, characterized by its complex structure and numerous functional groups, offers a fascinating glimpse into the world of organic chemistry. Here are some intriguing aspects:

  • Dye and Pigment Applications: This compound is a *diazo dye*, often used in textile and printing industries for its vibrant coloring properties.
  • Azobenzene Derivative: As a derivative of azobenzene, it features an azo group which is responsible for its vivid color and photochemical properties.
  • p-Tolylsulfonyloxy Group: The presence of a p-tolylsulfonyloxy group enhances the compound's solubility and affects its reactivity, making it suitable for various chemical applications.
  • Biological Relevance: Compounds like this often undergo studies related to their biological activities, highlighting their potential as pharmaceutical agents due to their structural complexity.
  • Environmental Considerations: Due to the persistence of azo dyes in the environment, understanding their degradation pathways is crucial in environmental chemistry.

In summary, 4-[3-[2-methyl-4-(p-tolylsulfonyloxy)phenyl]azoanilino]-3-nitro-benzenesulfonic acid is pivotal in both industrial applications and environmental chemistry. The combination of its vibrant azo group, practical applications, and concerns about environmental impact make it a subject of ongoing research and discussion within the scientific community.

Synonyms
DTXSID70864318
4-[3-({2-Methyl-4-[(4-methylbenzene-1-sulfonyl)oxy]phenyl}diazenyl)anilino]-3-nitrobenzene-1-sulfonic acid