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Methylthioninium iodide

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Identification
Molecular formula
C22H32I2N2S
CAS number
61-73-4
IUPAC name
2-[2-[diethyl(methyl)ammonio]ethylsulfanyl]ethyl-diethyl-methyl-ammonium;diiodide
State
State

At room temperature, methylthioninium iodide is typically in a solid state. It is stable under normal conditions but should be stored in a dry environment to prevent degradation.

Melting point (Celsius)
190.00
Melting point (Kelvin)
463.00
Boiling point (Celsius)
605.00
Boiling point (Kelvin)
878.00
General information
Molecular weight
873.10g/mol
Molar mass
873.0960g/mol
Density
1.8700g/cm3
Appearence

Methylthioninium iodide appears as a dark green powder or crystalline solid. It can also appear as a reddish-brown solid under certain conditions. When dissolved in water, it produces a characteristic blue solution, which is used in various applications, including biological staining.

Comment on solubility

Solubility of 2-[2-[diethyl(methyl)ammonio]ethylsulfanyl]ethyl-diethyl-methyl-ammonium;diiodide

The compound 2-[2-[diethyl(methyl)ammonio]ethylsulfanyl]ethyl-diethyl-methyl-ammonium;diiodide exhibits notable characteristics relating to its solubility, primarily influenced by its ionic nature and the presence of bulky organic groups. Here are some key points about its solubility:

  • Ionic Compound: As a diiodide, it is likely to dissociate into ions, which generally enhances solubility in polar solvents such as water.
  • Hydrophilic Ammonium Groups: The presence of ammonium ions in its structure tends to increase solubility in aqueous solutions.
  • Effect of Alkyl Chains: The long diethyl groups may introduce some hydrophobic characteristics, potentially decreasing solubility compared to smaller ionic compounds.
  • Solvent Interaction: It is expected to be more soluble in polar protic solvents when compared to non-polar solvents due to the ability of polar solvents to solvate ionic species effectively.

In summary, while 2-[2-[diethyl(methyl)ammonio]ethylsulfanyl]ethyl-diethyl-methyl-ammonium;diiodide shows good solubility in polar solvents, the balance between its hydrophilic ammonium groups and hydrophobic alkyl chains plays a crucial role in determining the overall solubility profile. As with many ionic compounds, temperature and concentration may also significantly affect its solubility

Interesting facts

Interesting Facts about 2-[2-[diethyl(methyl)ammonio]ethylsulfanyl]ethyl-diethyl-methyl-ammonium;diiodide

This compound, known for its intriguing structure and properties, belongs to the class of quaternary ammonium salts. These types of compounds often exhibit unique interactions due to the presence of positively charged nitrogen atoms, which can attract negatively charged ions, playing a significant role in various applications.

Key Features and Applications:

  • Biological Activity: Compounds like this one can demonstrate antimicrobial properties, making them potential candidates for use in pharmaceuticals and disinfectants.
  • Surface Activity: The amphiphilic nature of quaternary ammonium compounds allows them to function as surfactants, which are critical in enhancing the solubility and dispersibility of other substances in formulations.
  • Cationic Stability: The stability of the diethylmethylammonium cation provides enhanced functionality in industrial applications, such as in the synthesis of polymers.

This compound’s ability to form complexes with various anions, particularly iodide in this case, can lead to interesting behaviors in solution chemistry. As noted by one researcher, "The unique interaction between the quaternary ammonium head and different anions can dramatically influence the physical properties and utility of the compound."

Research and Development:

Ongoing research on this compound focuses on:

  • Material Science: Investigating its potential in developing new materials, particularly in the fields of nanotechnology.
  • Biomedicine: Exploring its use in drug delivery systems where controlled release of therapeutic agents is crucial.
  • Catalysis: Studying its role as a catalyst in organic synthesis reactions, which could lead to more efficient manufacturing processes.

In summary, 2-[2-[diethyl(methyl)ammonio]ethylsulfanyl]ethyl-diethyl-methyl-ammonium;diiodide is not just a chemical compound but a significant entity in the realm of chemical research and applications, highlighting the endless possibilities within the world of chemistry.

Synonyms
Thiodiethylenebis(diethylmethylammonium iodide)
AS-7150
AMMONIUM, THIODIETHYLENEBIS(DIETHYLMETHYL-, DIIODIDE
3166-63-0
DTXSID80953626
N,N'-[Sulfanediyldi(ethane-2,1-diyl)]bis(N-ethyl-N-methylethan-1-aminium) diiodide