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Eosin B

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Identification
Molecular formula
C20H6Br2N2O9
CAS number
548-26-5
IUPAC name
2-(4,5-dibromo-3-hydroxy-2,7-dinitro-6-oxo-xanthen-9-yl)benzoic acid
State
State

At room temperature, Eosin B is generally in a solid state, specifically as a powdered or crystalline solid. It is stable under normal temperatures and pressures but should be stored in a cool, dry place to maintain its stability and prevent degradation.

Melting point (Celsius)
280.00
Melting point (Kelvin)
553.15
Boiling point (Celsius)
365.00
Boiling point (Kelvin)
638.15
General information
Molecular weight
624.08g/mol
Molar mass
624.0830g/mol
Density
1.6000g/cm3
Appearence

Eosin B typically appears as a reddish or pink powder. The compound is often found in the form of crystalline powder and is used as a dye, imparting a bright red fluorescence when dissolved.

Comment on solubility

Solubility of 2-(4,5-dibromo-3-hydroxy-2,7-dinitro-6-oxo-xanthen-9-yl)benzoic acid

The solubility of the compound 2-(4,5-dibromo-3-hydroxy-2,7-dinitro-6-oxo-xanthen-9-yl)benzoic acid can be influenced by various factors due to its complex structure. Generally speaking, the solubility characteristics of a compound can be summarized as follows:

  • Polarity: The presence of multiple polar functional groups, such as hydroxyl and carboxylic groups, often enhances solubility in polar solvents.
  • Hydrogen Bonding: The hydroxyl groups can engage in hydrogen bonding, which facilitates solubility in water and organic solvents.
  • Temperature Effect: Like many organic compounds, solubility may increase with temperature, leading to enhanced dissolving in solvents.
  • Solvent Selection: The choice of solvent is crucial; it may be significantly more soluble in solvents like ethanol or dimethyl sulfoxide (DMSO) compared to water.

It is essential to note that steric hindrance from the bromine substitutions may also impact the accessibility of these functional groups, potentially reducing solubility compared to related compounds without such bulky substituents. As a result, predicting its exact solubility should involve empirical data, which could be unique based on its precise molecular interactions.

In conclusion, while the structural features of this compound predispose it to certain solubility characteristics, actual solubility values will best guide practical applications and formulations. "Understanding solubility is key in chemistry," as the solubility of a compound dictates its feasibility in various chemical and biological environments.

Interesting facts

Interesting Facts about 2-(4,5-dibromo-3-hydroxy-2,7-dinitro-6-oxo-xanthen-9-yl)benzoic Acid

This intriguing compound belongs to the class of organic compounds known as xanthenes, which are noted for their vibrant colors and various applications in biological and chemical processes. Here are some remarkable aspects of this unique compound:

  • Structure & Complexity: The structural framework of this compound is highly complex, featuring multiple functional groups, including nitro and hydroxy, along with a xanthene core. This complexity leads to interesting chemical reactivity and potential applications in organic synthesis.
  • Chromogenic Nature: Compounds like this often exhibit colorimetric properties, making them useful in dyeing processes. The presence of bromine and nitro groups can enhance their ability to absorb light, leading to vivid colors that can be utilized in various applications, including biological assays and staining techniques.
  • Biological Interest: The incorporation of multiple bromine and nitro groups may endow this compound with intriguing biological activities, ranging from antimicrobial to antitumor properties. Researchers often study such compounds for their potential pharmacological effects.
  • Versatile Reactivity: Due to its functional groups, this compound can engage in a variety of chemical reactions. For instance, it may participate in electrophilic aromatic substitution or nucleophilic addition, making it a valuable building block in synthetic organic chemistry.
  • Applications: Beyond its structural and reactivity attributes, this compound has potential applications in fields such as photodynamic therapy, environmental monitoring, and as a fluorescent probe in analytical chemistry.

In conclusion, 2-(4,5-dibromo-3-hydroxy-2,7-dinitro-6-oxo-xanthen-9-yl)benzoic acid is a fascinating compound that highlights the beauty and diversity of organic chemistry, showcasing how intricate structures can lead to a plethora of scientific possibilities.

Synonyms
MFCD00066762
C20H8Br2N2O9
2-(4,5-dibromo-3-hydroxy-2,7-dinitro-6-oxoxanthen-9-yl)benzoic acid
Eosin B, Dye content 95 %
CHEMBL1205196
SCHEMBL12086218
SCHEMBL29362396
DTXSID40862169
2-(4,5-Dibromo-2,7-dinitro-3-oxo-6-hydroxy-3H-xanthen-9-yl)benzoic acid
2-(4,5-dibromo-3-hydroxy-2,7-dinitro-6-oxo-xanthen-9-yl)benzoic acid
2-(4,5-Dibromo-6-hydroxy-2,7-dinitro-3-oxo-3H-xanthen-9-yl)benzoic acid
Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,4',5'-dibromo-3',6'-dihydroxy-2',7'-dinitro-