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Name
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L-Serine
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|---|---|
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Synonyms
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(s)-2-amino-3-hydroxypropanoic acid;
2-Amion-3-hydroxypropionic acid;
alpha-Amino-beta-hydroxypropionic acid;
alpha-amino-beta-hydroxypropionic acid;
Propanoic acid, 2-amino-3-hydroxy-, (S)-;
8-HYDROXY-L-ALANINE;
L-(-)-SERINE;
L-(+)-SERINE
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|
CAS Number
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56-45-1
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|
Molecular Formula
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C3H7NO3
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|
Molecular Weight
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105.09
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EINECS Number
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200-274-3
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Melting Point
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222 °C (dec.) (lit.)
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|
Specific Optical Rotation
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15.2 ° (c=10, 2N HCl)
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|
Boiling Point
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197.09°C (rough estimate)
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|
Bulk Density
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570 kg/m³
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|
Density
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1.6
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Refractive Index
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1.4368 (estimate)
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|
Flash Point
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150°C
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Storage Conditions
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2-8°C
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|
Solubility
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H₂O: 50 mg/mL
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|
Form
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Powder
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|
Acid Dissociation Constant (pKa)
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2.19 (at 25°C)
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|
Color
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White
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|
pH Value
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5-6 (100g/l, H₂O, 20°C)
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|
Odor
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White crystals or powder, odorless, sweet taste
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|
Usage
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L-serine is a non-essential amino acid in the human body. Its core function is to synthesize proteins and phospholipids (such as phosphatidylserine, a key component of cell membranes). Meanwhile, it participates in the synthesis of important substances like neurotransmitters, purines, and pyrimidines, serving as a fundamental raw material for maintaining the normal physiological functions of the body. Its additional roles include:
Neuroprotection: Acting as a precursor for phosphatidylserine synthesis, it helps maintain the stability of nerve cell membranes and supports brain cognitive functions. Skin health: As a key raw material for synthesizing ceramides in the skin's stratum corneum, it aids in maintaining the skin barrier function and reducing water loss. Medical support: Under certain special circumstances (e.g., long-term parenteral nutrition, specific metabolic diseases), it can be used as a nutritional supplement to help correct L-serine deficiency and maintain the body's metabolic balance. |
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