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English Name
|
L-Alanine
|
|---|---|
|
English Synonyms
|
(S)-2-Aminopropanoic acid;
(s)-2-aminopropanoicacid;
Aspartic Acid Impurity 6;
Tenofovir Impurity 80;
(S)-2-Aminopropansäure;
(S)-2-Aminopropionsäure;
2-Aminopropanoic acid;
2-Aminopropanoicacid
|
|
CAS Number
|
56-41-7
|
|
Molecular Formula
|
C3H7NO2
|
|
Molecular Weight
|
89.09
|
|
EINECS Number
|
200-273-8
|
|
Melting Point
|
314.5 °C
|
|
Specific Optical Rotation
|
14.5 ° (c=10.6N HCl, dry sub.)
|
|
Boiling Point
|
212.9±23.0 °C (Predicted)
|
|
Bulk Density
|
660 kg/m³
|
|
Density
|
1.432 g/cm³
|
|
Refractive Index
|
1.4650 (estimate)
|
|
FEMA
|
3818
|
|
Storage Conditions
|
2-8°C
|
|
Solubility
|
H₂O: 100 mg/mL
|
|
Form
|
Powder
|
|
pKa Value
|
2.34 (at 25°C)
|
|
Color
|
White to nearly white
|
|
pH Value
|
5.5-6.5 (100g/L, H₂O, 20°C)
|
|
Odor
|
Odorless
|
|
Odor Type
|
odorless
|
|
Biological Source
|
Synthetic
|
|
Optical Rotation
|
[α]20/D +14.0±1°, c = 5% in 5 M HCl
|
|
Water Solubility
|
166.5 g/L (25 °C)
|
|
Usage
|
It functions as a nutritional supplement. As a non-essential amino acid, it is the most abundant amino acid in the blood and plays an important physiological role.
It also serves as a flavor and aroma enhancer. It is used in unfermented products, synthetic sake, compound sweeteners, etc., with a significant synergistic effect, and the dosage is generally 0.01% to 0.03%. When heated with sugar (under the amino-carbonyl reaction), it can generate special aromatic substances.
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