Skip to main content

Cysteine

ADVERTISEMENT
Identification
Molecular formula
C3H7NO2S
CAS number
52-90-4
IUPAC name
2-amino-5-[[amino(sulfanyl)methylene]amino]pentanoic acid
State
State

Cysteine exists as a solid at room temperature. Due to its peptide bonding capabilities, it is commonly found in proteins in living organisms.

Melting point (Celsius)
240.00
Melting point (Kelvin)
513.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
121.16g/mol
Molar mass
121.1580g/mol
Density
1.3000g/cm3
Appearence

Cysteine is a colorless solid, typically occurring as crystalline powder or white crystals. It is known for forming rust-colored deposits when oxidized due to the formation of disulfide bonds, which can give it a slightly metallic luster when such deposits accumulate.

Comment on solubility

Solubility of 2-amino-5-[[amino(sulfanyl)methylene]amino]pentanoic acid (C3H7NO2S)

2-amino-5-[[amino(sulfanyl)methylene]amino]pentanoic acid exhibits variable solubility characteristics due to its unique chemical structure that includes both amino and sulfhydryl functional groups. The solubility behavior can be influenced by the following factors:

  • Polarity of the molecule: The presence of multiple amino groups confers polar characteristics, which typically enhances solubility in polar solvents such as water.
  • Acid-base interactions: As an amino acid, it can participate in acid-base equilibria, which may further affect its solubility at different pH levels.
  • Hydrogen bonding: The ability to form hydrogen bonds with water molecules increases its solubility.
  • Concentration effects: At higher concentrations, precipitation may occur due to saturation limits.

Overall, it can be concluded that:

  1. 2-amino-5-[[amino(sulfanyl)methylene]amino]pentanoic acid is likely to be soluble in water, particularly given the presence of its functional groups.
  2. The solubility may vary depending on the specific conditions, such as temperature, pH, and the presence of other solutes.

In summary, while the solubility of this compound in water is expected to be significant, meticulous experimentation is necessary to pinpoint its solubility limits under diverse conditions.

Interesting facts

Interesting Facts about 2-amino-5-[[amino(sulfanyl)methylene]amino]pentanoic acid

2-amino-5-[[amino(sulfanyl)methylene]amino]pentanoic acid is a fascinating compound that belongs to the family of amino acids. Amino acids are the building blocks of proteins, and this particular compound has unique structural features that make it significant in biochemical studies.

Key Highlights

  • Biological Importance: This compound plays a role in various biochemical pathways, particularly in the processes related to protein synthesis. Its structure allows it to participate in metabolic reactions.
  • Functional Groups: The presence of amino and sulfhydryl functional groups enhances its reactivity, enabling it to form covalent bonds with other biomolecules. This property is particularly useful in the study of enzyme functions and interactions.
  • Potential Applications: Research indicates that compounds similar to 2-amino-5-[[amino(sulfanyl)methylene]amino]pentanoic acid may have therapeutic potential in treating neurodegenerative diseases owing to their role in neurotransmission and cellular repair mechanisms.
  • Unique Structural Feature: The "methylene" bridge in its structure contributes to its stability and reactivity, making it an excellent subject for studies in molecular biology.

In summary, 2-amino-5-[[amino(sulfanyl)methylene]amino]pentanoic acid stands out due to its intriguing structure and biological relevance. As the study of amino acids continues to evolve, compounds like this could unlock new pathways and potential treatments in the field of biochemistry.