The fundamental properties and structural analysis of L-Alanyl-L-cystine are outlined as follows:
I. Fundamental Properties
·Appearance: White to off-white crystalline powder.
·Solubility: Poorly soluble in water but soluble in acidic or alkaline solutions.
·Stability: L-Alanyl-L-cystine is relatively stable under normal conditions and can be stored long-term in dry, light-protected environments.
·Chemical Formula and Molecular Weight: The chemical formula is C12H22N4O6S2, with a molecular weight of 382.46.
·Density and Boiling Point: Predicted density is 1.445 ± 0.06 g/cm³, and the predicted boiling point is 751.7 ± 60.0 °C.
·Acidity Coefficient: Predicted pKa is 2.61 ± 0.10.
II. Structural Analysis
1. Chemical Structure:
L-Alanyl-L-cystine is a dipeptide formed by the linkage of L-alanine and L-cystine via amide bonds. Specifically, two L-alanine molecules are connected to the two carboxyl groups of L-cystine through amide bonds.
2. Structural Features:
The molecule contains sulfur atoms, which impart unique chemical properties such as antioxidative activity. Due to its dipeptide structure, it also exhibits certain biological activity.
III. Applications and Preparation
1. Applications:
L-Alanyl-L-cystine can be used as a protein nutritional supplement, enhancing the stamina and resilience of athletes and fitness enthusiasts. Additionally, it may have potential applications in the pharmaceutical field.
2. Preparation:
L-Alanyl-L-cystine can be synthesized through chemical methods. The preparation process typically involves amide formation reactions and ammonolysis reactions under specific conditions to ensure product purity and yield.
L-Alanyl-L-cystine is a dipeptide compound with a unique chemical structure and biological activity. Its fundamental properties include its white to off-white crystalline appearance, poor water solubility but solubility in acidic and basic solutions, and relative stability under normal conditions. Structurally, it is composed of L-alanine and L-cystine linked by amide bonds and contains sulfur atoms. Furthermore, it has broad applications and well-defined preparation methods.
