Ponceau 4R

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Identification

Molecular formula
C20H11N2Na3O10S3
CAS Number
2611-82-7
IUPAC Name
trisodium;4-[(4-anilino-5-sulfonato-1-naphthyl)azo]-5-hydroxy-naphthalene-2,7-disulfonate
Molecular Weight
760.58g/mol
Melting Point
(Celsius)
Boiling Point
(Celsius)
Density
1.5200g/cm3
Synonyms
ACID BLUE 92
Interesting facts

Interesting Facts About Trisodium 4-[(4-anilino-5-sulfonato-1-naphthyl)azo]-5-hydroxy-naphthalene-2,7-disulfonate

Trisodium 4-[(4-anilino-5-sulfonato-1-naphthyl)azo]-5-hydroxy-naphthalene-2,7-disulfonate, often simply referred to in discussions about dye chemistry, is a fascinating compound with several notable characteristics:

  • Dye Applications: This compound is frequently employed as a dye in various applications, particularly in textiles due to its vibrant color properties and stability. The azo group present is responsible for forming bright hues.
  • Environmental Impact: Despite its effective usage in dying, the environmental implications of azo dyes are crucial. Some azo compounds can be hazardous, and research is ongoing to address their biodegradability and minimize pollution.
  • pH Sensitivity: The compound's behavior can vary with changes in pH, leading to its use as a pH indicator in certain experimental setups.
  • Reactivity: It demonstrates notable reactivity through its sulfonate groups, which enhances solubility in water and contributes to its stability in various applications.
  • Historical Significance: Azo compounds have a rich history in chemistry, dating back to the 19th century, and have shaped the development of synthetic dyes and colorants, influencing both art and industry.

In conclusion, the multifaceted role of this compound in both industrial and environmental contexts makes it a compelling subject of study. As you explore its properties and applications, remember the delicate balance between innovation and sustainability!

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