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Orange G

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Identification
Molecular formula
C16H10ClN2O7S2
CAS number
1936-15-8
IUPAC name
3-(5-chloro-2-hydroxy-phenyl)azo-4,5-dihydroxy-naphthalene-2,7-disulfonic acid
State
State

At room temperature, Orange G is a solid. It is typically supplied as a powder and is used in various staining procedures in biological studies.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
452.84g/mol
Molar mass
452.3700g/mol
Density
1.3289g/cm3
Appearence

Orange G is an organic compound that appears as an orange powder. It is commonly used as a dye and displays a bright orange color in solution.

Comment on solubility

Solubility of 3-(5-chloro-2-hydroxy-phenyl)azo-4,5-dihydroxy-naphthalene-2,7-disulfonic acid

This compound, known for its complex structure, exhibits interesting solubility characteristics primarily due to the presence of multiple functional groups. The solubility can be influenced by several factors:

  • Polarity: The sulfonic acid groups promote high polarity, enhancing solubility in water.
  • Functional Groups: The presence of hydroxyl groups contributes to hydrogen bonding with water molecules, further improving its solubility.
  • Acidic Nature: As a sulfonic acid, it is likely to ionize in solution, increasing its solubility in aqueous environments.

However, the solubility can also be affected by:

  • Temperature: Increasing temperature generally increases solubility for solids in liquids.
  • pH Levels: Changes in pH can influence the ionization state, thereby affecting solubility.

In summary, while 3-(5-chloro-2-hydroxy-phenyl)azo-4,5-dihydroxy-naphthalene-2,7-disulfonic acid shows a tendency toward higher aqueous solubility due to its polar groups, its specific behavior in solution can vary significantly based on environmental conditions. As always, empirical testing is recommended to ascertain precise solubility under different scenarios.

Interesting facts

Interesting Facts about 3-(5-Chloro-2-hydroxy-phenyl)azo-4,5-dihydroxy-naphthalene-2,7-disulfonic acid

This fascinating compound is known for its vibrant applications in various fields, particularly in dye chemistry and analytical chemistry. Here are some noteworthy facts:

  • Dye Chemistry: This compound is a key player in the production of azo dyes, which are widely utilized for coloring textiles, foods, and cosmetics. The azo group (-N=N-) provides excellent coloration properties.
  • Biological Significance: Compounds such as this have been studied for their potential in medicinal chemistry. Their complex structures can interact with biological systems, which makes them interesting targets for research into new pharmaceuticals.
  • Environmental Considerations: Azo dyes can pose environmental risks due to their potential to generate toxic compounds upon degradation. Research on compounds like this one helps in understanding these risks and developing safer alternatives.
  • Analytical Applications: This compound can be employed in various analytical techniques, such as UV-Vis spectroscopy. It assists in determining concentrations of substances due to its distinct absorption characteristics.
  • Sulfonic Acid Functionality: The presence of sulfonic acid groups in its structure enhances its water solubility and ionic characteristics, making it suitable for various applications in aqueous media.

In a broader sense, the study of compounds like 3-(5-chloro-2-hydroxy-phenyl)azo-4,5-dihydroxy-naphthalene-2,7-disulfonic acid not only enriches our comprehension of chemical interactions and properties but also contributes to crucial advancements in sustainable chemistry and materials science.

Synonyms
C.I. Mordant Blue 13
7361-97-9
NSC100234
SCHEMBL1272519
SCHEMBL1272522
SCHEMBL9621486
CHEMBL1626072
SCHEMBL14463180
DTXSID10421727
DTXSID901024810
NSC-100234
2,7-Naphthalenedisulfonic acid, 3-(3-chloro-6-hydroxyphenylazo)-4,5-dihydroxy-
3-((E)-(5-Chloro-2-hydroxyphenyl)diazenyl)-4,5-dihydroxy-2,7-naphthalenedisulfonic acid
3-(5-chloro-2-hydroxyphenyl)azo-4,5-dihydroxynaphtalene-2,7-disulfonic acid
1264367-70-5