Rhodamine B | Solubility of Things

Identification

Molecular formula

C₂₈H₃₀N₂O₃Cl

CAS number

81-88-9

IUPAC name

(2-anilino-2-oxo-ethyl)-[2-(2,6-dimethylanilino)-2-oxo-ethyl]-dimethyl-ammonium

State

At room temperature, rhodamine B is typically found in a solid state as a crystalline powder. It is stable under normal conditions but should be stored in a cool, dry place away from light to prevent degradation.

Melting point (Celsius)

210.00

Melting point (Kelvin)

483.15

Boiling point (Celsius)

0.00

Boiling point (Kelvin)

0.00

General information

Molecular weight

479.02g/mol

Molar mass

479.0150g/mol

Density

1.2928g/cm³

Appearence

Rhodamine B is a bright reddish-violet colored dye. It appears as a deep pink or fuchsia powder and is known for its high fluorescence. In solution, particularly when dissolved in water or alcohol, it can exhibit a strong coloration, often appearing as a bright pink or red-violet depending on the concentration.

Comment on solubility

Solubility Insights on (2-anilino-2-oxo-ethyl)-[2-(2,6-dimethylanilino)-2-oxo-ethyl]-dimethyl-ammonium

The compound (2-anilino-2-oxo-ethyl)-[2-(2,6-dimethylanilino)-2-oxo-ethyl]-dimethyl-ammonium exhibits unique solubility characteristics that make it noteworthy:

Polarity: Given the structure of this compound, it contains both hydrophilic amine and carbonyl groups, which contribute to its ability to interact with water.
Solvent Interaction: This compound is likely to be more soluble in polar solvents due to the presence of its ionic dimethylammonium group.
Temperature Effects: Increased temperature may enhance its solubility, a common trait observed in many organics, facilitating better dispersion in solution.

As with many compounds, it’s important to test solubility under varying conditions for comprehensive understanding. To quote an adage from chemistry, "Like dissolves like," emphasizing the importance of matching solvent polarity with the compound's functional groups.

In summary, the solubility of this compound is influenced by its structural features and the choice of solvent, making it a subject of interest for solubility studies and applications in various chemical contexts.

Interesting facts

Interesting Facts about (2-anilino-2-oxo-ethyl)-[2-(2,6-dimethylanilino)-2-oxo-ethyl]-dimethyl-ammonium

This compound, with its complex structure, is a fascinating example of a quaternary ammonium salt. These salts generally exhibit diverse properties and utilities, particularly in medicinal and industrial applications. Here are some engaging facts about this compound:

Medicinal Relevance: Compounds with quaternary ammonium groups have demonstrated significant antibacterial properties. Their positive charge allows them to interact effectively with cell membranes, making them valuable in pharmaceutical formulations.
Surface Activity: The amphiphilic nature of this compound suggests that it can function as a surfactant, lowering surface tension and thereby enhancing the solubility of other substances. This property has implications for drug delivery systems.
Colorimetric Applications: Certain derivatives of this class can act as colorimetric pH indicators, changing color based on the surrounding pH levels. This could enable real-time monitoring of biochemical processes.
Quaternization:**: The presence of dimethylammonium moieties indicates that the molecule has been quaternized, a process crucial for enhancing the solubility of organic compounds in water and making them amenable for biological interactions.

Research Potential: The intricate structure of this compound opens avenues for further studies in organic synthesis and materials science. Researchers are keen to explore how variations in the aniline and dimethyl groups can influence the overall properties.

As a student of chemistry, understanding the multifaceted nature of compounds like this one broadens your perspective on molecular interactions and their applications across various fields. The complexity and versatility in functionality make such compounds a hot topic in ongoing scientific explorations.