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Sunset Yellow FCF

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Identification
Molecular formula
C16H10Cl2N4O3S2
CAS number
2783-94-0
IUPAC name
4-(5-amino-3-methyl-1-phenyl-pyrazol-4-yl)azo-2,5-dichloro-benzenesulfonic acid
State
State

At room temperature, Sunset Yellow FCF is typically in a solid-state. It is often found as a powder or granules and is soluble in water, where it imparts an intense yellow color.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.15
Boiling point (Celsius)
697.15
Boiling point (Kelvin)
970.30
General information
Molecular weight
452.38g/mol
Molar mass
452.3800g/mol
Density
1.8800g/cm3
Appearence

Sunset Yellow FCF is a synthetic yellow azo dye with an orangish-yellow appearance. It is commonly used as a food additive and is available as a disodium salt. In its solid form, it usually appears as an orange-red powder or granules.

Comment on solubility

Solubility of 4-(5-amino-3-methyl-1-phenyl-pyrazol-4-yl)azo-2,5-dichloro-benzenesulfonic acid

This compound, known for its complex structure, exhibits unique solubility properties that are influenced by several factors. Understanding the solubility of such compounds is essential for their applications in various chemical processes.

Factors Affecting Solubility

  • Polarity: The presence of polar functional groups, such as benzenesulfonic acid, often increases solubility in polar solvents like water.
  • Hydrogen Bonding: The amino group may participate in hydrogen bonding, enhancing solubility in solvents capable of accepting or donating hydrogen bonds.
  • Temperature: Like many compounds, solubility can increase with temperature, allowing for greater dissolution in solvents.
  • pH Level: As an acid, solubility can vary significantly with pH, influencing its ionic form and thus its overall solubility profile.

It is reported that compounds with similar structures often demonstrate moderate to high solubility in water and common organic solvents, making them versatile in laboratory settings. As a general note, compounds with extensive aromatic systems might exhibit lower solubility due to increased hydrophobic character.

To summarize, the solubility of 4-(5-amino-3-methyl-1-phenyl-pyrazol-4-yl)azo-2,5-dichloro-benzenesulfonic acid can be markedly influenced by its structural features and external conditions, making it a fascinating subject for further investigation in solubility studies.

Interesting facts

Interesting Facts about 4-(5-Amino-3-methyl-1-phenyl-pyrazol-4-yl)azo-2,5-dichloro-benzenesulfonic Acid

This compound, often abbreviated as ADCBSA, is a remarkable azo dye known for its vivid color and distinct properties. Azo dyes are characterized by the presence of one or more azo bonds (–N=N–) and hold significant importance in various fields, including textiles, food coloring, and biological research.

Key Characteristics

  • Colorful Applications: The vibrant hue of ADCBSA is utilized in dyeing textiles and can also serve as a tracer in analytical chemistry.
  • Biological Relevance: Due to its structure, ADCBSA may exhibit interesting interactions with biological systems, potentially leading to applications in drug development or as a biochemical marker.
  • Stability and Reactivity: The unique combination of substituted pyrazole and sulfonic acid groups lends this compound both stability and reactivity, making it a key player in syntheses involving azo chemistry.

Chemical Insights

The compound's structure features both the pyrazole ring and a sulfonic acid functional group, which can significantly influence its solubility and reactivity. This combination makes ADCBSA particularly interesting for studying electronic pathways in chemical reactions. Furthermore, the substituents on the pyrazole ring can enhance its electronic effects, making it a valuable subject for research in organic chemistry.

Ecological Considerations

As with many azo dyes, environmental concerns related to their degradation and potential toxicity have garnered research interest. Investigations into how ADCBSA breaks down in natural systems and its long-term ecological impact are essential for ensuring responsible use, especially in applications involving consumer products.

In conclusion, 4-(5-amino-3-methyl-1-phenyl-pyrazol-4-yl)azo-2,5-dichloro-benzenesulfonic acid is a multifaceted compound that bridges disciplines from dye chemistry to environmental science. Its *unique structure and properties* make it a subject of ongoing research and a valuable tool in various scientific endeavors.

Synonyms
4-[(5-amino-3-methyl-1-phenyl-1h-pyrazol-4-yl)azo]-2,5-dichlorobenzenesulphonic acid
Benzenesulfonic acid, 4-((5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo)-2,5-dichloro-
Benzenesulfonic acid, 4-(2-(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl)-2,5-dichloro-
4-((5-Amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo)-2,5-dichlorobenzenesulphonic acid
Benzenesulfonic acid, 4-[(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo]-2,5-dichloro-
Benzenesulfonic acid, 4-[2-(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl]-2,5-dichloro-
benzenesulfonic acid, 4-(5-amino-3-methyl-1-phenyl-1h-pyrazol-4-yl)azo-2,5-dichloro-
235-473-4
C.I. ACID YELLOW 49
12239-15-5
ACID YELLOW 49
4-[(5-amino-3-methyl-1-phenylpyrazol-4-yl)diazenyl]-2,5-dichlorobenzenesulfonic acid
Benzenesulfonic acid,4-[(5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo]-2,5-dichloro-
EINECS 235-473-4
DTXSID9065289
SCHEMBL11697203
SCHEMBL12669300
QHVBDWZOQBMLLW-UHFFFAOYSA-N
HY-D0490
MFCD00071836
5-Amino-1-phenyl-4-((2,5-dichloro-4-sulfophenyl)azo)-3-methyl-pyrazole
AKOS015894296
2,5-Dichloro-4-((5-amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)azo)benzenesulfonic acid
C.I.Acid Yellow 49 (C.I.18640)
CS-0010582
NS00052465