Direct Red 81

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Identification

Molecular formula
C34H26N6Na2O8S4
CAS Number
2610-11-9
IUPAC Name
disodium;3-amino-4-[4-[4-[4-(p-tolylsulfonyloxy)phenyl]azophenyl]phenyl]azo-naphthalene-2,7-disulfonate
Molecular Weight
760.77g/mol
Melting Point
(Celsius)
Boiling Point
(Celsius)
Density
1.4000g/cm3
Synonyms
Acid Orange 45
Interesting facts

Interesting Facts about Disodium 3-Amino-4-[4-[4-[4-(p-tolylsulfonyloxy)phenyl]azophenyl]phenyl]azo-naphthalene-2,7-disulfonate

This compound is a complex azo dye, commonly used in various applications due to its vivid coloring properties. Here are some intriguing details:

  • Azo Dyes: Azo compounds, like this one, are characterized by the -N=N- functional group, which plays a crucial role in the color properties of the dye.
  • Applications: This dye is primarily used in the textile industry, particularly for coloring fabrics. Additionally, it finds applications in the formulation of inks and plastics.
  • Toxicity Considerations: While azo dyes can offer brilliant colors, some azo compounds are known to break down into potentially harmful amines. Therefore, its use is often monitored and regulated in various jurisdictions.
  • Color Varieties: Depending on pH and other environmental factors, azo dyes can exhibit different hues, making them versatile for various design applications. This compound's structural components allow for a wide range of color blends.
  • Research Interest: Scientists are continually researching the properties of azo dyes like disodium 3-amino-4-[4-[4-[4-(p-tolylsulfonyloxy)phenyl]azophenyl]phenyl]azo-naphthalene-2,7-disulfonate to find safer alternatives and more sustainable production methods.

In conclusion, while disodium 3-amino-4-[4-[4-[4-(p-tolylsulfonyloxy)phenyl]azophenyl]phenyl]azo-naphthalene-2,7-disulfonate may seem like a complex name, it represents a significant area of study within chemical dyes, reflecting both industrial utility and important considerations in safety and environmental impact.

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