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C.I. Pigment Red 146

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Identification
Molecular formula
C22H14N4O9S2
CAS number
5280-68-2
IUPAC name
4-[2-[4,6-dioxo-5-[(4-sulfo-1-naphthyl)hydrazono]cyclohex-2-en-1-ylidene]hydrazino]naphthalene-1-sulfonic acid
State
State

At room temperature, C.I. Pigment Red 146 is a solid. It is typically synthesized and stored in its powder form for industrial applications.

Melting point (Celsius)
0.00
Melting point (Kelvin)
0.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
604.61g/mol
Molar mass
604.6100g/mol
Density
1.3989g/cm3
Appearence

C.I. Pigment Red 146 appears as a dark red powder. It is a synthetic organic pigment known for its excellent stability, weather resistance, and strong tinting strength. This compound is widely used in inks, paints, and plastics due to its vibrant red color.

Comment on solubility

Solubility of 4-[2-[4,6-dioxo-5-[(4-sulfo-1-naphthyl)hydrazono]cyclohex-2-en-1-ylidene]hydrazino]naphthalene-1-sulfonic acid

The solubility of 4-[2-[4,6-dioxo-5-[(4-sulfo-1-naphthyl)hydrazono]cyclohex-2-en-1-ylidene]hydrazino]naphthalene-1-sulfonic acid is influenced by a variety of factors due to its complex molecular structure. Here are some insights into its solubility characteristics:

  • Polar Characteristics: The presence of sulfonic acid groups suggests that this compound is likely to be highly polar, which can enhance its solubility in polar solvents such as water.
  • Hydrogen Bonding: The compound’s structure may enable strong hydrogen bonding interactions, facilitating increased solubility in aqueous solutions.
  • Temperature Dependency: Like many organic compounds, the solubility can vary with temperature, often increasing as temperature rises.
  • pH Sensitivity: The ionic nature of the sulfonic acid might make the compound sensitive to pH variations, impacting its solubility in buffered solutions.
  • Solvent Affinity: Solubility may also differ significantly when transitioning from aqueous to non-aqueous environments.

In summary, while the specific solubility of this compound requires empirical measurement, it is expected that its polar and ionic features will facilitate solubility, particularly in water and other polar solvents. Understanding these solubility dynamics is crucial for applications in various fields such as dyes, pharmaceuticals, and beyond.

Interesting facts

Interesting Facts about 4-[2-[4,6-dioxo-5-[(4-sulfo-1-naphthyl)hydrazono]cyclohex-2-en-1-ylidene]hydrazino]naphthalene-1-sulfonic acid

This compound is a fascinating example of a synthetic organic molecule used in various applications, primarily within the field of chemistry. It features several intriguing characteristics:

  • Complex Structure: The molecular architecture includes a naphthalene backbone adorned with sulfonic acid groups, which are instrumental for increasing water solubility, promoting its utility in aqueous environments.
  • Applications in Dyes: This compound plays a crucial role in the production of dyes, specifically as an intermediate in synthesizing various azo dyes, contributing to vibrant colors in textiles and other materials.
  • Hydrazone Chemistry: The hydrazone functional group is present, which is notable for its reactivity and ability to form stable compounds in organic synthesis. Hydrazones are also characterized by their distinctive ability to undergo tautomerization, leading to diverse molecular forms.
  • Biological Relevance: The sulfonic acid group suggests potential biological activity, which warrants investigation into its pharmacological properties, including possible antimicrobial and antitumor activities.
  • Role in Indicator Chemistry: Due to its unique structural features, this compound may exhibit behavior as a pH indicator, relevant in titrations and other analytical chemistry applications.

In chemistry, exploration of such compounds can yield significant insights, as they embody both structural complexity and functional diversity. As a student or a researcher, engaging with molecules like this one not only broadens your understanding of organic synthesis but also paves the way for innovative applications in various scientific fields.

Synonyms
89785-22-8
DTXSID40859933
4,4a(2)-[(2,6-Dihydroxy-1,3-phenylene)bis(2,1-diazenediyl)]bis[1-naphthalenesulfonic acid]