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Indigo Carmine

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Identification
Molecular formula
C16H8N2O8S2
CAS number
860-22-0
IUPAC name
5-carbamoylimino-1-methyl-6-oxo-2,3-dihydroindole-2-sulfonic acid
State
State

At room temperature, Indigo Carmine is a solid. It remains stable under normal conditions of use and storage. It is soluble in water, producing a dark blue solution, and also shows variable solubility in other solvents based on pH and ionic strength.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.15
Boiling point (Celsius)
289.00
Boiling point (Kelvin)
562.15
General information
Molecular weight
466.36g/mol
Molar mass
466.3560g/mol
Density
2.4370g/cm3
Appearence

Indigo Carmine appears as a dark blue to purple crystalline powder. It is often used as a dye and will present a strong, vibrant blue color when dissolved in a solution. The color intensity can vary depending on concentration, pH, and the solvent it is dissolved in.

Comment on solubility

Solubility of 5-Carbamoylimino-1-methyl-6-oxo-2,3-dihydroindole-2-sulfonic Acid (C16H8N2O8S2)

The solubility of 5-carbamoylimino-1-methyl-6-oxo-2,3-dihydroindole-2-sulfonic acid can be characterized by several important factors:

  • Polarity: This compound contains multiple polar functional groups, including a sulfonic acid group and carbonyls, which typically lead to increased solubility in polar solvents.
  • Acidic Nature: The sulfonic acid group (-SO3H) contributes to its potential solubility in water, as it can ionize to form a sulfonate anion.
  • Hydrogen Bonding: With both amine and carbonyl functionalities, the compound is likely to engage in hydrogen bonding with solvent molecules, further enhancing its solvation.
  • Solvent Specificity: Solubility may vary significantly among different solvents; for instance, it might be soluble in water and certain polar organic solvents but less so in non-polar solvents.

In summary, while predicting the exact solubility without empirical data can be challenging, the presence of functional groups and acidity suggests that 5-carbamoylimino-1-methyl-6-oxo-2,3-dihydroindole-2-sulfonic acid may demonstrate considerable solubility in polar environments.

Interesting facts

Interesting Facts About 5-Carbamoylimino-1-methyl-6-oxo-2,3-dihydroindole-2-sulfonic Acid

This intriguing compound possesses a rich tapestry of properties and potential applications that are noteworthy for both students and seasoned chemists. Here are some key highlights:

  • Biochemical Relevance: The presence of both the carbamoyl and sulfonic acid functional groups makes this compound a subject of interest in medicinal chemistry, particularly for its potential roles in drug development.
  • Indole Derivative: As an indole derivative, this compound may exhibit unique electronic and structural characteristics, possibly influencing its reactivity and interaction with biological targets.
  • Research Potential: Ongoing studies about indole compounds indicate that they often have significant pharmacological activities, including anti-inflammatory and anticancer properties.
  • Analytical Chemistry: The complex structure of this compound, including multiple functional groups, presents an interesting challenge for analytical techniques like NMR and mass spectrometry, which are essential for understanding its properties.

Furthermore, its synthesis and functionalization can lead to a variety of analogs that might enhance its biological activity or alter its reactivity profile. The investigation into such compounds can foster a deeper understanding of molecular interactions in biological systems.

As stated by many chemists, “The science of chemistry is the exploration of the molecules that compose the universe.” This compound is yet another brushstroke on the vast canvas of chemical exploration, emphasizing the importance of detailed studies in the quest for new therapeutic agents.


In conclusion, 5-carbamoylimino-1-methyl-6-oxo-2,3-dihydroindole-2-sulfonic acid not only serves as a fascinating subject within organic chemistry but also holds the potential to contribute significantly to advancements in various fields, especially in biomedicine.