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Ponceau 4R

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Identification
Molecular formula
C32H28N2Na2O8S2
CAS number
2611-82-7
IUPAC name
5-[4-[4-[2,6-diamino-3-[[8-hydroxy-3,6-disulfo-7-[(4-sulfo-1-naphthyl)azo]-2-naphthyl]azo]-5-methyl-phenyl]azophenyl]phenyl]azo-2-hydroxy-benzoic acid
State
State

At room temperature, Ponceau 4R is typically found in the form of a solid powder.

Melting point (Celsius)
280.00
Melting point (Kelvin)
553.15
Boiling point (Celsius)
300.00
Boiling point (Kelvin)
573.15
General information
Molecular weight
604.47g/mol
Molar mass
604.4700g/mol
Density
1.5000g/cm3
Appearence

Ponceau 4R appears as a red powder. It is often used as a food dye and features a bright, vivid red color.

Comment on solubility

Solubility of 5-[4-[4-[2,6-diamino-3-[[8-hydroxy-3,6-disulfo-7-[(4-sulfo-1-naphthyl)azo]-2-naphthyl]azo]-5-methyl-phenyl]azophenyl]phenyl]azo-2-hydroxy-benzoic acid

The solubility of the compound 5-[4-[4-[2,6-diamino-3-[[8-hydroxy-3,6-disulfo-7-[(4-sulfo-1-naphthyl)azo]-2-naphthyl]azo]-5-methyl-phenyl]azophenyl]phenyl]azo-2-hydroxy-benzoic acid is influenced by its complex structure, which includes multiple functional groups. Here are some important aspects to consider:

  • Polar Functional Groups: The presence of hydroxyl (-OH) and sulfonic acid (-SO3H) groups significantly enhances its solubility in water.
  • Aromatic Rings: Aromatic systems can reduce solubility due to their hydrophobic nature. However, the presence of sulfonic groups can offset this effect.
  • pH Dependency: The solubility might vary with pH levels, as acidic or basic conditions can affect the ionization of functional groups.

In summary, while the presence of hydrophilic groups suggests that this compound may exhibit good solubility in polar solvents such as water, the overall solubility will depend upon balance between its polar and nonpolar characteristics, solvent interactions, and environmental conditions. It is believed that compounds with such multifaceted structures can display unique solubility profiles, attracting interest for various applications.

Interesting facts

Interesting Facts about 5-[4-[4-[2,6-Diamino-3-[[8-Hydroxy-3,6-Disulfo-7-[(4-Sulfo-1-Naphthyl)Azo]-2-Naphthyl]Azo]-5-Methyl-Phenyl]AzoPhenyl]Phenyl]Azo-2-Hydroxy-Benzoic Acid

This intricate compound represents a fascinating intersection of organic chemistry and dye chemistry, showcasing the potential of azo compounds in various applications. Here are some noteworthy aspects:

  • Azo Compounds: This compound belongs to the class of azo dyes, which are characterized by the presence of a -N=N- (azo) functional group. These dyes are widely used in textiles, inks, and even food coloring due to their vivid colors.
  • Dual Purpose: The molecular structure features both an azo group and hydroxy groups, making it a potential candidate for both dyeing and as a biochemical marker. This dual functionality can open doors to advanced applications in analytical chemistry.
  • Health and Safety: Many azo dyes have been scrutinized for their safety, particularly regarding their potential to form carcinogenic amines. This highlights the importance of understanding the implications of using such compounds in consumer products.
  • Synthetic Versatility: The synthesis of such a complex compound involves multiple steps, often utilizing diazotization and coupling reactions. Its intricate structure allows chemists to explore various modifications that can alter its properties and applications.
  • Application in Biology: The presence of amino groups and sulfonic acids suggests that this compound could be studied for potential biological applications, particularly in targeting specific cells or as a tool in drug delivery systems.

In summary, understanding compounds like this one not only broadens our knowledge of chemical structures but also informs their practical applications in fields such as dye chemistry, pharmaceuticals, and materials science. As we delve deeper into the properties and potential uses of such molecules, we continue to unveil the versatile capabilities of chemistry.

Synonyms
C.I. Direct Brown 31
25180-41-0
SCHEMBL17804083
DTXSID901023624
5-[[4-[4-[[2,6-Diamino-3-[[8-hydroxy-3,6-disulfo-7-[(4-sulfonaphthalen-1-yl)diazenyl]naphthalen-2-yl]diazenyl]-5-methylphenyl]diazenyl]phenyl]phenyl]diazenyl]-2-hydroxybenzoic acid