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Tartrazine

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Identification
Molecular formula
C16H9N4Na3O9S2
CAS number
1934-21-0
IUPAC name
5-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)azo]-2-[4-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)azo]-2-sulfo-phenyl]benzenesulfonic acid
State
State

At room temperature, tartrazine is typically in a solid state, specifically in the form of a powder. It is usually a deep yellow or orange powder that is soluble in water, imparting a bright yellow color to solutions.

Melting point (Celsius)
0.00
Melting point (Kelvin)
0.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
534.37g/mol
Molar mass
534.3680g/mol
Density
1.6800g/cm3
Appearence

Tartrazine is a bright yellow synthetic lemon yellow azo dye primarily used as a food coloring. It is known for its vibrant yellow color, making it a popular choice in foods and other products such as cosmetics and pharmaceuticals.

Comment on solubility

Solubility of 5-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)azo]-2-[4-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)azo]-2-sulfo-phenyl]benzenesulfonic acid

The solubility characteristics of the compound 5-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)azo]-2-[4-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)azo]-2-sulfo-phenyl]benzenesulfonic acid can be quite intriguing, due to its complex structure and functional groups. Below are some key points regarding its solubility:

  • Solvent polarity: This compound likely exhibits greater solubility in polar solvents such as water or methanol, primarily due to the presence of sulfonic acid groups that can ionize and interact favorably with polar solvents.
  • Temperature effect: The solubility may increase with temperature, as is common with many organic compounds, allowing for enhanced molecular movement and interaction with the solvent.
  • pH dependency: The solubility may also be influenced by the pH of the solution. In acidic conditions, the sulfonic acid groups are protonated, which may alter their interactions with water.

Given the size and complexity of this chemical structure, one might expect its solubility to be moderate to high in suitable environments, and therefore it is crucial to consider these factors when performing experiments or applications involving this compound.


Interesting facts

Exploring the Unique World of 5-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)azo]-2-[4-[(3-methyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)azo]-2-sulfo-phenyl]benzenesulfonic acid

This fascinating compound represents a significant achievement in the field of dye chemistry and medicinal applications. Its complex structure primarily features azo groups, which are known for their vibrant colors and their extensive use in coloring agents. Here are some interesting aspects of this compound:

  • Azo Compounds: Characterized by the presence of the -N=N- (azo) functional group, azo compounds are celebrated for their vivid hues, making them essential in textiles and art.
  • Medicinal Potential: Compounds with similar structures have been investigated for anti-inflammatory and anti-tumor activities. The inclusion of pyrazole rings adds to their potential pharmacological properties.
  • Environmental Considerations: As much as azo dyes are vibrant, concerns regarding their environmental impact have led to increased scrutiny. Some azo compounds can release harmful amines upon degradation, warranting careful handling and disposal.
  • Analytical Uses: Due to their distinct absorption spectra, azo dyes are popularly utilized in various analytical techniques, including spectrophotometry.
  • Broad Applications: The application spectrum of such compounds extends beyond dyes; they can also be used in pharmaceuticals, agrochemicals, and even as indicators in biochemical assays.

With a structure that intricately combines various functional groups, this compound exemplifies the intersection of synthetic organic chemistry and practical applications. It's a reminder of how chemistry can lead to innovations that enrich various industries and environmental solutions.

In the words of a noted chemist: "Understanding the intricacies of a compound's structure can unveil the diverse possibilities it holds, bridging theoretical research with tangible advancements in our world."

Synonyms
DTXSID00863773
4,4'-Bis[(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)diazenyl][1,1'-biphenyl]-2,2'-disulfonic acid