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Methylene blue

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Identification
Molecular formula
C16H18ClN3S
CAS number
61-73-4
IUPAC name
[[4-(dimethylamino)phenyl]-methylsulfanyl-methylene]-dimethyl-ammonium;iodide
State
State

At room temperature, methylene blue is typically a solid in the form of a crystalline powder. When dissolved, it commonly appears as a liquid solution with its characteristic blue color.

Melting point (Celsius)
100.00
Melting point (Kelvin)
373.15
Boiling point (Celsius)
300.00
Boiling point (Kelvin)
573.15
General information
Molecular weight
319.85g/mol
Molar mass
319.8520g/mol
Density
1.0700g/cm3
Appearence

Methylene blue is a dark green crystalline powder that yields a deep blue solution in water. It is often sold as a powder or sometimes as a solution and is known for its intense blue-violet color when dissolved in liquid.

Comment on solubility

Solubility of [4-(dimethylamino)phenyl]-methylsulfanyl-methylene]-dimethyl-ammonium; iodide

The solubility of the compound [4-(dimethylamino)phenyl]-methylsulfanyl-methylene]-dimethyl-ammonium iodide can be characterized by several important factors:

  • Polarity: Due to the presence of both ammonium and iodide groups, this compound exhibits significant polarity, which often enhances its solubility in polar solvents.
  • Solvent Interaction: It is likely to dissolve readily in water and other polar solvents due to hydrogen bonding and ionic interactions with the solvent molecules.
  • Temperature Dependence: The solubility may increase with temperature, as is common with many ionic compounds, leading to a more favorable dissolution process.
  • Concentration Effects: In solutions, the solubility might also depend on the presence of other ions or solutes, which could lead to either precipitate formation or enhanced solubility through complexation.

In summary, solutions of this compound are expected to be stable and clear, especially in suitable polar environments. It is important to consider both the temperature and the solvent composition when determining the solubility characteristics in practical applications.

Interesting facts

Interesting Facts about [4-(dimethylamino)phenyl]-methylsulfanyl-methylene]-dimethyl-ammonium; iodide

This intriguing compound, often referred to in chemical literature, exhibits a variety of remarkable properties and applications that pique the interest of researchers and students alike.

Structural Highlights

  • Quaternary Ammonium Compound: The presence of the dimethylammonium group indicates that this compound is a quaternary ammonium salt, which can influence its solubility and application in various environments.
  • Sulfhydryl Group: The methylsulfanyl component not only adds to the complexity of the molecule but also plays a crucial role in biological and chemical reactions.
  • Aromatic System: The 4-(dimethylamino)phenyl structure contributes to the compound's electronic properties, making it an interesting candidate for studies in molecular electronics.

Applications and Uses

This compound is significant in various fields due to its unique properties:

  • Biochemical Implications: The quaternary ammonium structure often finds applications in biochemistry, particularly as surfactants and antimicrobial agents.
  • Organic Synthesis: Its versatile nature allows it to be utilized in organic synthesis, aiding in the development of more complex molecules.
  • Colorimetric Applications: Compounds with similar structural motifs are known to exhibit colorimetric properties, making them useful in analytical chemistry.

Research and Development

Ongoing studies into the properties of this compound are revealing its potential in the following areas:

  • Pharmaceutical Research: Investigations into its biological activities have sparked interest in its potential therapeutic applications.
  • Material Science: Its properties contribute to the development of new materials with specific functionalities, particularly in coatings and adhesives.

The multifaceted nature of [4-(dimethylamino)phenyl]-methylsulfanyl-methylene]-dimethyl-ammonium; iodide continues to inspire scientific inquiry, as researchers explore its diverse applications and uncover new properties of this fascinating compound.

Synonyms
19422-12-9
S-Methyl-N,N-dimethyl-p-dimethylaminothiolbenzimidate iodide
AMMONIUM, (p-(DIMETHYLAMINO-alpha-(METHYLTHIO)BENZYLIDENE))DIMETHYL-, IODIDE
RefChem:319061
DTXSID20941143
4-[(Dimethylamino)(methylsulfanyl)methylidene]-N,N-dimethylcyclohexa-2,5-dien-1-iminium iodide