Acid Red 18

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Identification

Molecular formula
C20H11N2NaO5S
CAS Number
2611-82-7
IUPAC Name
4-amino-3-[4-[4-[(1-hydroxy-4-sulfo-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-naphthalene-1-sulfonic acid
Molecular Weight
604.57g/mol
Melting Point
(Celsius)
Boiling Point
(Celsius)
Density
1.7908g/cm3
Synonyms
Direct Violet 32 free acid
Interesting facts

Interesting Facts about 4-amino-3-[4-[4-[(1-hydroxy-4-sulfo-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-naphthalene-1-sulfonic acid

The compound known as 4-amino-3-[4-[4-[(1-hydroxy-4-sulfo-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-naphthalene-1-sulfonic acid is a fascinating substance due to its intricate structure and significant applications in various fields. Here are some interesting highlights:

  • Dye Industry: This compound is primarily utilized as a dye, especially in textiles and printing. Its vibrant color and stability make it a preferred choice for coloring various materials.
  • Analytical Chemistry: It serves as a useful reagent in analytical chemistry for detecting and quantifying phenomena, owing to its unique chromophoric properties.
  • Biological Research: The presence of sulfonic acid groups enhances its water solubility, making it beneficial in biological studies, such as in cell staining and tracking.
  • Colorimetric Applications: The azo group in the compound allows for colorimetric measurements, which are essential in quantifying concentrations in solutions.

One of the defining characteristics of this compound is its complex azo linkage, which is responsible for the rich chromatic properties observed in many azo dyes. The detailed arrangement of functional groups within the molecule not only contributes to its reactive properties but also plays a vital role in its environmental stability.

As with many azo compounds, it is important to consider safety and environmental impacts when employing this dye in industrial applications. Researchers are continuously exploring safe and effective methods to reduce any potential hazardous effects associated with azo dyes.

In summary, 4-amino-3-[4-[4-[(1-hydroxy-4-sulfo-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-naphthalene-1-sulfonic acid exemplifies the blend of art and science, marrying the dazzling world of colors with the precision of chemistry.

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