|
Name
|
L - Carnosine
|
|---|---|
|
Synonyms
|
N-B-ALANYL-L-HISTIDINE;
H-BETA-ALA-HIS-OH;
L-IGNOTINE;
L-BETA-ALANINE HISTIDINE;
L-CARNOSINE; B-ALANYL-L-HISTIDINE;
BETA-A-H; BETA-ALANYL-L-HISTIDINE
|
|
CAS Number
|
305-84-0
|
|
Molecular Formula
|
C9H14N4O3
|
|
Molecular Weight
|
226.23
|
|
EINECS Number
|
206-169-9
|
|
Melting Point
|
253 °C (dec.) (lit.)
|
|
Specific Optical Rotation
|
20.9 ° (c=1.5, H₂O)
|
|
Boiling Point
|
367.84°C (rough estimate)
|
|
Density
|
1.2673 (rough estimate)
|
|
Vapor Pressure
|
0 Pa at 25°C
|
|
Refractive Index
|
21 ° (C=2, H₂O)
|
|
Storage Conditions
|
-20°C
|
|
Solubility
|
Slightly soluble in DMSO, slightly soluble in water
|
|
Acid Dissociation Constant (pKa)
|
2.62 (at 25°C)
|
|
Form
|
Crystalline
|
|
Color
|
White
|
|
Odor (Odor)
|
Odorless
|
|
Optical Rotation
|
+24.120
|
|
Water Solubility
|
almost transparency
|
|
Merck
|
14,1850
|
|
BRN
|
87671
|
|
Stability
|
Stable, but may be heat-sensitive. Refrigerate. Incompatible with strong oxidizing agents.
|
|
Usage
|
Antioxidation and anti-aging: As a potent antioxidant, it can reduce free radical damage to cells. Especially in skin care, it is often used to delay skin aging and improve skin texture.
Sports nutrition: It can help scavenge lactic acid and free radicals produced during exercise, reduce muscle fatigue, and enhance exercise endurance, so it is often used as an ingredient in sports supplements.
Neuroprotection: It can protect nerve cells through antioxidation and stabilizing cell functions, and relevant studies involve assisting in improving issues related to neurodegeneration.
Food and medicine: In the food industry, it is used as a natural antioxidant to extend the shelf life of food; in the pharmaceutical field, its potential in improving eye oxidative damage and assisting in regulating blood sugar is explored.
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