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Methylene blue

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Identification
Molecular formula
C16H18ClN3S
CAS number
61-73-4
IUPAC name
(4-acetamidoanilino)methylene-dimethyl-ammonium;chloride
State
State

Methylene blue is typically found in the form of a solid at room temperature. It is available as a crystalline powder and often provided as a trihydrate in various laboratory and industrial uses. This property makes it stable and easy to handle, store, and transport.

Melting point (Celsius)
100.00
Melting point (Kelvin)
373.15
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
319.85g/mol
Molar mass
319.8530g/mol
Density
1.2300g/cm3
Appearence

Methylene blue appears as a solid that usually takes on a dark blue or green crystalline powder form. When dissolved in water, it forms a deep blue to a bluish-green solution depending on the concentration and purity. The dye's rich coloration is due to its ability to absorb light in the visible spectrum, which makes it particularly vibrant. It can sometimes demonstrate a slight iridescence under certain lighting conditions.

Comment on solubility

Solubility of (4-acetamidoanilino)methylene-dimethyl-ammonium;chloride

The solubility of (4-acetamidoanilino)methylene-dimethyl-ammonium;chloride is influenced by several factors, including its ionic nature and the presence of functional groups. This compound is a quaternary ammonium salt, which typically exhibits high solubility in polar solvents such as water. Its solubility characteristics can be summarized as follows:

  • High solubility in water: Due to its ionic structure, this compound is expected to readily dissolve in aqueous solutions.
  • Limited solubility in non-polar solvents: As is common with ionic compounds, the solubility in organic solvents like hexane or benzene is generally low.
  • Temperature dependence: Like many salts, the solubility may increase with rising temperature, allowing a greater amount to dissolve in solution.
  • pH considerations: The solubility can also be affected by the pH of the solution, as changes in acidity may influence ionization.

In conclusion, it is important to consider these factors when assessing the solubility of (4-acetamidoanilino)methylene-dimethyl-ammonium;chloride. The compound’s ionic nature lends itself to high solubility in polar solvents, making it suitable for various applications in the field of chemistry. As the old adage goes, "Like dissolves like." Therefore, understanding the solubility profile in relation to the solvent characteristics is crucial.

Interesting facts

Interesting Facts about (4-Acetamidoanilino)methylene-dimethyl-ammonium Chloride

(4-Acetamidoanilino)methylene-dimethyl-ammonium chloride, often referred to as a quaternary ammonium compound, presents an intriguing profile within the realm of chemical science. Here are some interesting insights:

  • Antimicrobial Properties: Quaternary ammonium compounds like this one are widely appreciated for their antimicrobial properties. They effectively combat a variety of bacteria and fungi, making them valuable in antiseptic and disinfectant applications.
  • Applications in Pharmaceuticals: This compound’s structural features allow it to serve as a potential intermediary in the synthesis of pharmaceutical agents, especially those targeting neurological conditions due to its ability to cross lipid membranes.
  • Role in Material Science: Researchers are exploring the incorporation of such ammonium compounds into polymers to enhance antibacterial properties. This application is particularly relevant in medical devices and textiles.
  • Compatibility with Biological Systems: The presence of an acetamido group hints at its compatibility with biological systems, which can be essential for its role in drug development and delivery systems, providing insights into structure-activity relationships.
  • Discussion Points in Research: Chemists often discuss the balance between efficacy and safety in formulations using quaternary ammonium compounds. The ongoing research aims to optimize these compounds for improved selectivity and reduced toxicity.

As a vibrant part of the chemical landscape, (4-acetamidoanilino)methylene-dimethyl-ammonium chloride continues to pave the way for scientific exploration and innovation.

Synonyms
N-(p-Acetamidophenyl)-N',N'-dimethylformamidine hydrochloride
2417-13-2
FORMAMIDINE, N-(p-ACETAMIDOPHENYL)-N',N'-DIMETHYL-, HYDROCHLORIDE