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Indigo Carmine

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Identification
Molecular formula
C16H10N2Na2O8S2
CAS number
860-22-0
IUPAC name
2-hydroxy-3-(3-oxoindol-2-yl)-1H-indole-5-sulfonic acid
State
State

At room temperature, Indigo Carmine is a solid. It exists typically in a crystalline powder form and is often utilized in various applications for its colorant properties. It is stable under normal conditions and is primarily used in dyeing processes.

Melting point (Celsius)
390.00
Melting point (Kelvin)
663.00
Boiling point (Celsius)
700.00
Boiling point (Kelvin)
973.00
General information
Molecular weight
466.36g/mol
Molar mass
466.3580g/mol
Density
1.9820g/cm3
Appearence

Indigo Carmine is a dark blue to purple crystalline powder. It can appear almost black in its concentrated form and is commonly used as a dye due to its vivid color properties. When dissolved in water, it forms a deep blue solution.

Comment on solubility

Solubility of 2-hydroxy-3-(3-oxoindol-2-yl)-1H-indole-5-sulfonic acid

The solubility of 2-hydroxy-3-(3-oxoindol-2-yl)-1H-indole-5-sulfonic acid (C16H10N2Na2O8S2) is an important characteristic that affects its application in various chemical processes. This compound displays distinct solubility properties that can be summarized as follows:

  • Solvent Compatibility: It is generally soluble in polar solvents, such as water and methanol, owing to the presence of hydrophilic functional groups, including the sulfonic acid.
  • pH Dependence: The solubility can vary significantly with pH. As a sulfonic acid, it is expected to be more soluble in acidic conditions.
  • Temperature Influence: Increased temperatures typically enhance the solubility of this compound in solution.

For practical applications, it is essential to note that:

  • The solubility in water may lead to the formation of a clear solution, which is beneficial for synthesis or analytical procedures.
  • When attempting to dissolve this compound, it is advantageous to employ a continuous stirring mechanism to ensure optimal solubility.
  • It is often recommended to consult specific solubility data under varied conditions for precise applications.

In conclusion, the solubility of 2-hydroxy-3-(3-oxoindol-2-yl)-1H-indole-5-sulfonic acid is a critical parameter that influences its behavior and functionality in diverse chemical reactions. To achieve the best results, careful consideration of the solvent, pH, and temperature is advised.

Interesting facts

Interesting Facts about 2-hydroxy-3-(3-oxoindol-2-yl)-1H-indole-5-sulfonic acid

2-hydroxy-3-(3-oxoindol-2-yl)-1H-indole-5-sulfonic acid is a fascinating compound that belongs to the class of sulfonic acids, known for their strong acidity and utility in various applications. Here are some intriguing aspects of this compound:

  • Dual Functionality: This compound exhibits both indole and sulfonic acid functionalities, giving it unique chemical properties. The indole structure is known for its presence in many biologically active compounds.
  • Biological Relevance: The indole moiety is fundamental in many natural products and pharmaceuticals, including neurotransmitters and hormones, making this compound potentially relevant in medicinal chemistry.
  • UV-Vis Absorption: Compounds like this often exhibit interesting absorption properties in the ultraviolet-visible spectrum, which can be utilized in various analytical techniques such as UV-Vis spectroscopy.
  • Colorimetric Applications: The structural features of this compound might lend themselves to applications in colorimetric assays, where changes in color can indicate concentration changes or reactions.
  • Research Potential: As researchers seek new compounds with unique characteristics for drug development and material science, sulfonic acid derivatives like this one could open new pathways for innovation.

In conclusion, 2-hydroxy-3-(3-oxoindol-2-yl)-1H-indole-5-sulfonic acid is not merely a chemical formula; its unique structure and properties may hold untapped potential in the realms of chemical research and pharmacology. As noted by many chemists, "Every molecule has a story to tell." This compound stands ready to share its tale with those who explore its possibilities!

Synonyms
Indirubin-5-sulfonate
indirubin-5-sulphonate
244021-67-8
CHEMBL1207227
CHEMBL1208600
2',3-DIOXO-1,1',2',3-TETRAHYDRO-2,3'-BIINDOLE-5'-SULFONIC ACID
(Z)-2',3-dioxo-1',2'-dihydro-1H,3H-(2,3'-biindolylidene)-5'-sulfonic acid
(Z)-2',3-dioxo-1',2'-dihydro-1H,3H-[2,3'-biindolylidene]-5'-sulfonic acid
1v0o
Indirubin derivative, 20
SCHEMBL490806
BDBM84534
A05-A11B1-I
UJA02167
BDBM50023871
BDBM50593898
NSC717821
AKOS040733447
DB02519
NSC-717821
DA-64438
E226
NCI60_040625
HY-111932
CS-0094097
NS00070552
Q27093503
2-hydroxy-3-(3-oxoindol-2-yl)-1H-indole-5-sulfonic acid
(3Z)-2-oxo-3-(3-oxoindolin-2-ylidene)indoline-5-sulfonic acid
(2Z)-2',3-dioxo-1,1',2',3-tetrahydro-2,3'-biindole-5'-sulfonic acid
2-Oxo-3-(3-oxo-1,3-dihydro-2H-indol-2-ylidene)-2,3-dihydro-1H-indole-5-sulfonic acid