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Methionine methylmercury

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Identification
Molecular formula
C7H14HgNO2S
CAS number
590-96-5, 7429-90-5 (Mercury)
IUPAC name
2-amino-3-methyl-3-sulfanyl-butanoic acid;mercury
State
State

At room temperature, Methionine methylmercury is a solid. It is stable under normal conditions but should be handled with care as it contains mercury, a toxic element. The substance requires storage in a cool, dry place with adequate ventilation and caution must be practiced to avoid mercury exposure.

Melting point (Celsius)
112.00
Melting point (Kelvin)
385.10
Boiling point (Celsius)
254.15
Boiling point (Kelvin)
527.30
General information
Molecular weight
282.79g/mol
Molar mass
282.7900g/mol
Density
2.2901g/cm3
Appearence

Methionine methylmercury is typically a white to off-white powder, crystalline in nature. It may not have a distinct odor but can appear glossy under certain conditions due to its crystalline structure. Care must be taken as it is a compound that contains mercury.

Comment on solubility

Solubility of 2-amino-3-methyl-3-sulfanyl-butanoic acid;mercury

The solubility of 2-amino-3-methyl-3-sulfanyl-butanoic acid (often known as cysteine) is influenced by various factors, including pH, temperature, and the presence of other ions in the solution.

Factors Affecting Solubility

  • pH Level: Cysteine is more soluble in acidic conditions as its carboxylic acid group remains ionized, enhancing solubility.
  • Temperature: Generally, higher temperatures tend to increase the solubility of cysteine in water.
  • Presence of Ions: The solubility might decrease in the presence of divalent metal ions, such as those from mercury compounds, due to complex formation.

When considering the mercury aspect of this compound, one must note that mercury ions can significantly reduce the solubility of thiol compounds like cysteine, as they can form stable complexes, limiting its ability to dissolve in aqueous solutions.

General Observations

As a result, the solubility of 2-amino-3-methyl-3-sulfanyl-butanoic acid can be summarized as:

  • Generally soluble in water under suitable pH conditions.
  • Reduced solubility in the presence of mercury ions.
  • Overall, characterized by its ability to form complexes that impact solubility dynamics.

In conclusion, while cysteine exhibits favorable solubility properties, the introduction of mercury can present unique challenges, making the understanding of solubility essential when working with this compound.

Interesting facts

Interesting Facts about 2-Amino-3-methyl-3-sulfanyl-butanoic Acid

2-Amino-3-methyl-3-sulfanyl-butanoic acid, commonly known as homocysteine, is an intriguing amino acid with vital biological significance. Here are some key aspects that highlight its importance:

  • Essential Role in Metabolism: Homocysteine is a non-proteinogenic amino acid that plays a crucial role in the metabolism of sulfur-containing amino acids. It acts as an intermediate in the synthesis of cysteine from methionine.
  • Health Implications: Elevated levels of homocysteine in the blood are associated with an increased risk of cardiovascular diseases. This amino acid is often monitored in clinical settings to assess heart health.
  • Connection with Vitamins: The metabolism of homocysteine is closely linked to vitamins B6, B12, and folate. These vitamins are necessary cofactors that facilitate crucial enzymatic reactions, emphasizing the importance of nutrition for maintaining optimal levels of homocysteine.
  • Biochemical Significance: Homocysteine can participate in various biochemical pathways, reducing to cysteine or getting remethylated to methionine. Its versatility makes it a fascinating subject of study in both biochemistry and health sciences.

Quote: "Homocysteine is more than just a simple amino acid; it is a marker of health and disease, linking our dietary habits with longstanding health outcomes."

Interactions with Mercury

Interestingly, the presence of certain metals, such as mercury, can alter the behavior and metabolism of amino acids like homocysteine. Research into the interactions between mercury and homocysteine has revealed:

  • Toxicological Insights: Mercury exposure can disturb the body's amino acid balance and may exacerbate the risk associated with elevated homocysteine levels.
  • Environmental Concerns: Understanding these interactions highlights the need for vigilance regarding mercury pollution, which poses risks not only to ecosystems but also to human health.

In conclusion, homocysteine is not just a regular amino acid; it serves as a bridge between nutrition, health, and environmental factors. Its complex interactions within the body and with elements like mercury provide a captivating avenue for ongoing research.