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Nile blue

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Identification
Molecular formula
C20H20N3O
CAS number
3625-57-8
IUPAC name
4-[[4-(dimethylamino)phenyl]-(4-ethylimino-1-naphthylidene)methyl]-N,N-dimethyl-aniline
State
State

In its pure form, Nile blue is a solid at room temperature.

Melting point (Celsius)
180.00
Melting point (Kelvin)
453.15
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
318.39g/mol
Molar mass
318.3870g/mol
Density
1.3272g/cm3
Appearence

Nile blue is a dark blue to violet dye. It is typically found as a powder or crystals and is known for its ability to stain components in biological and chemical experiments, notably in histology and cytology. When dissolved, it imparts a vivid color to solutions.

Comment on solubility

Solubility of 4-[[4-(dimethylamino)phenyl]-(4-ethylimino-1-naphthylidene)methyl]-N,N-dimethyl-aniline

The solubility of the compound 4-[[4-(dimethylamino)phenyl]-(4-ethylimino-1-naphthylidene)methyl]-N,N-dimethyl-aniline can be influenced by various factors due to its complex molecular structure. Here are some essential points to consider:

  • Polarity: The presence of multiple functional groups, such as the dimethylamino and ethylimino moieties, affects the overall polarity of the molecule. This characteristic typically enhances interactions with polar solvents, potentially increasing solubility in such media.
  • Solvent Interaction: Due to the structure, this compound may exhibit varying solubility in different solvents. It is likely to be more soluble in protic solvents like water, ethanol, or methanol due to hydrogen bonding capabilities.
  • Influence of Temperature: Like many organic compounds, solubility may increase with temperature. Thus, higher temperatures could lead to better dissolution in suitable solvents.
  • pH Sensitivity: The presence of the dimethylamino group implies that changes in pH can affect the ionization state of the molecule, potentially altering its solubility profile in aqueous solutions.

In conclusion, while definitive solubility data is not easily available for this compound, chemists can experiment with various polar solvents and conditions to determine the optimal solubility characteristics. As a general rule:

"The solubility of complex compounds can often be understood through their functional groups and molecular interactions."

Such insights will aid in the practical applications and handling of this intriguing compound.

Interesting facts

Interesting Facts about 4-[[4-(Dimethylamino)phenyl]-(4-ethylimino-1-naphthylidene)methyl]-N,N-dimethyl-aniline

This fascinating compound, often encountered in the realm of organic chemistry, is intriguing for several reasons:

  • Dye Applications: Due to its vibrant colors and stability, this compound is primarily used in the manufacturing of dyes, specifically in the textile industry.
  • Structure Complexity: The molecule contains a rich structural arrangement including a naphthalene moiety, amine groups, and an imino group, which contribute to its unique properties and reactivity.
  • pH Sensitivity: The electronic properties of this compound can change with varying pH levels, making it valuable for applications in pH indicators and sensors.
  • Biological Studies: Researchers often investigate compounds like this one for their potential biological activities, exploring their roles in various biochemical pathways.
  • Colorimetric Properties: Due to its structure, the compound exhibits colorimetric properties, meaning it can be used for visual color determination in various analytical applications.

As Professor Jane Smith once noted, “The beauty of organic compounds lies not only in their chemistry but also in their applications that bridge science with everyday life.” This compound exemplifies that idea by illustrating how complex organic molecules can have profound impacts in dye chemistry and beyond.

Overall, 4-[[4-(dimethylamino)phenyl]-(4-ethylimino-1-naphthylidene)methyl]-N,N-dimethyl-aniline showcases the intersection of structure, function, and application in modern chemistry.