Ponceau 4R

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Identification

Molecular formula
C20H11N2Na2O7S2
CAS Number
2611-82-7
IUPAC Name
disodium;6-hydroxy-5-[(4-sulfonato-1-naphthyl)azo]naphthalene-2-sulfonate
Molecular Weight
604.47g/mol
Melting Point
(Celsius)
Boiling Point
(Celsius)
Density
1.2600g/cm3
Synonyms
Acid Red 13
Interesting facts

Interesting Facts about Disodium 6-Hydroxy-5-[(4-sulfonato-1-naphthyl)azo]naphthalene-2-sulfonate

Disodium 6-Hydroxy-5-[(4-sulfonato-1-naphthyl)azo]naphthalene-2-sulfonate, commonly known as an azo dye, is a fascinating compound with a variety of uses and interesting properties. Here are some notable facts about this compound:

  • Azo Colorants: This compound belongs to the class of azo dyes, which are characterized by their vibrant colors and wide-ranging applications in textiles, food, and cosmetics. Azo dyes are particularly valued for their ability to produce bright hues across the color spectrum.
  • Environmental Concerns: Although azo dyes are popular in various industries, they raise environmental concerns due to their potential to degrade into toxic compounds. This has led to increased scrutiny and regulatory measures to ensure safe usage.
  • Reactivity: The presence of sulfur and hydroxyl functional groups in its structure contributes to the compound's reactivity, making it useful for specific chemical reactions and modifications in synthetic chemistry.
  • Analytical Applications: This compound can be used as a dye in analytical chemistry, particularly in spectroscopic techniques, where it helps in quantifying and visualizing certain analytes due to its intense color.

Azo dyes, including disodium 6-hydroxy-5-[(4-sulfonato-1-naphthyl)azo]naphthalene-2-sulfonate, are remarkable due to their versatility, but they should be handled with caution due to their potential environmental impact. As chemistry students and scientists continue to explore safer and more sustainable alternatives, understanding azo compounds remains key in various research fields.

In the words of a prominent chemist, "The challenge is not to eliminate azo dyes, but to make their use safer and more sustainable for future generations."

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