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Orange G

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Identification
Molecular formula
C16H10N2O7S2Na2
CAS number
1936-15-8
IUPAC name
4-hydroxy-3-[(4-sulfo-1-naphthyl)azo]naphthalene-1-sulfonic acid
State
State

In its standard state at room temperature, Orange G is typically a solid powder or granular form.

Melting point (Celsius)
271.00
Melting point (Kelvin)
544.15
Boiling point (Celsius)
921.00
Boiling point (Kelvin)
1 194.15
General information
Molecular weight
452.39g/mol
Molar mass
452.3860g/mol
Density
1.4900g/cm3
Appearence

Orange G appears as a red to orange powder or granules. It is a synthetic organic dye that is water-soluble and is used in various applications, prominently in biological stains for histological and cytological preparations.

Comment on solubility

Solubility of 4-hydroxy-3-[(4-sulfo-1-naphthyl)azo]naphthalene-1-sulfonic acid

The compound 4-hydroxy-3-[(4-sulfo-1-naphthyl)azo]naphthalene-1-sulfonic acid, also known as a type of azo dye, has specific solubility characteristics that are important for its application in various fields.

Notably, azo dyes like this one are typically characterized by:

  • High solubility in water: The presence of sulfonic acid groups enhances the compound's polarity, allowing it to dissolve readily in aqueous solutions.
  • Dependence on pH: The solubility can be affected by the pH of the solution. This compound is more soluble in basic or neutral conditions compared to acidic ones, affecting its behavior in different environments.
  • Temperature influence: Increased temperature often leads to enhanced solubility, making it easier to use in various applications by improving dissolution rates.

In summary, the solubility of 4-hydroxy-3-[(4-sulfo-1-naphthyl)azo]naphthalene-1-sulfonic acid is a key factor in its functionality, making it suitable for various industrial dyeing processes. Remember that understanding solubility is essential for optimizing its use in both chemical and environmental applications.

Interesting facts

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

This intriguing compound, known for its complex structure and vivid coloration, is a member of the azo dye family. Azo dyes are famous for their vibrant hues and are widely used in various industrial applications, especially in textiles. Here are some fascinating aspects of this particular compound:

  • Composition: The compound features a naphthalene backbone, which is distinctive due to its aromatic properties. This structure contributes to its stability and color intensity.
  • Use in Industry: As an azo dye, it plays a critical role in the textile industry. It imparts brilliant colors to fabrics, and its sulfonic acid groups enhance its water solubility, making it easier to apply.
  • Environmental Impact: While azo dyes offer many advantages, their biodegradability is a concern. Some azo compounds can release toxic amines upon degradation; thus, understanding their environmental impact is essential for sustainable practices.
  • Applications in Research: This compound is often used in research to study the interactions between dyes and various substrates, making it a significant subject in the fields of material science and chemistry.
  • Potential in Medicine: Recent studies have explored its potential applications in drug delivery systems due to its ability to interact with biological molecules and deliver therapeutic agents.

As with many compounds in the field of dyes, it is crucial to balance the benefits and drawbacks, particularly in terms of health and environmental safety. The study of compounds like this one opens doors to new innovations and a deeper understanding of chemical interactions.

Synonyms
4-hydroxy-3-[(4-sulpho-1-naphthyl)azo]naphthalene-1-sulphonic acid
4-Hydroxy-3-((4-sulpho-1-naphthyl)azo)naphthalene-1-sulphonic acid
Azo rubin S
13613-55-3
azorubine
E122
C.I. Acid Red 14, free acid
83344C2N7U
4-hydroxy-3-[(4-sulfonaphthalen-1-yl)diazenyl]naphthalene-1-sulfonic acid
2-(4-sulfo-1-naphthylazo)-1-naphthol-4-sulfonic acid
(E)-4-Hydroxy-3-((4-sulfonaphthalen-1-yl)diazenyl)naphthalene-1-sulfonic acid
NSC7807
Lissamine red W
UNII-83344C2N7U
EINECS 237-098-1
C.I. Chromotrope FB
7-Hydroxy-8-((4-sulfo-1-naphthyl)azo)-5-naphthalenesulfonic acid
SCHEMBL110093
SOLOCHROME BRILLIANT BLUE
CHEMBL1624506
DTXSID8047216
SCHEMBL15115265
SCHEMBL21274168
CHEBI:180754
TVWOWDDBXAFQDG-UHFFFAOYSA-N
1-Naphthalenesulfonic acid, 4-hydroxy-3-((4-sulfo-1-naphthalenyl)azo)-
C.I. ACID RED 14 FREE ACID
C.I. ACID RED 14 (FREE ACID)
NS00013473
NS00085799
NS00100936
2-(4-Sulfo-1-naphthylazo)-1-naphthol-4-sulfonate
Q27269382
1-NAPHTHOL-4-SULFONIC ACID, 2-(4-SULFO-1-NAPHTHYLAZO)-
4-hydroxy-3-[(4-sulfo-1-naphthalenyl) azo]-1-naphthalene sulfonic acid
4-Hydroxy-3-[(4-sulfo-1-naphthalenyl)azo]-1-naphthalenesulfonic acid, 9CI
4-hydroxy-3-[(4-sulonaphthalen-1-yl)diazenyl]naphthalene-1-sulonic acid
4-hydroxy-3-[(E)-(4-sulfo-1-naphthyl)azo]naphthalene-1-sulfonic acid
1-NAPHTHALENESULFONIC ACID, 4-HYDROXY-3-(2-(4-SULFO-1-NAPHTHALENYL)DIAZENYL)-