Chemical structure and basic properties
Molecular formula: C₃H₇NO₂, corresponding to Alanine, one of the 20 standard amino acids.

Structural Formula
L-Alanine (natural form)	CH₃CH(NH₂)COOH, α-aminopropionic acid.
D-Alanine (non-natural form)	Enantiomer, commonly found in bacterial cell walls.
Physical and chemical properties
Molecular weight	89.09 g/mol.
Melting point	297°C (decomposition).
Solubility	Easily soluble in water, slightly soluble in ethanol.
Isoelectric point (pI)	6.0, neutral amino acid.

Production Process

Microbial fermentation method (mainstream)
Strain	Corynebacterium glutamicum, Escherichia coli (genetically engineered).
Raw materials	Renewable resources such as glucose and corn starch.
Features	Environmentally friendly, high purity (>99%), in line with food grade standards.
Enzymatic synthesis	Use immobilized enzyme to catalyze the reaction, mild conditions, and few by-products.

Typical Product Examples

Low Sodium Soy Sauce

Alanine and potassium glutamate are compounded to reduce the amount of salt by 30%.

Sports Drinks

Contain alanine + electrolytes to improve endurance performance.

Plant Protein Bars

Strengthen alanine to make up for the lack of limiting amino acids in grain protein.

Medical Amino Acid Injection

A key ingredient in 18AA compound preparations.

Medical And Cosmetic Applications

Medical Field

Infusion ingredients: amino acid supplements for postoperative or malnourished patients.
Drug intermediates: synthetic vitamin B6, pantothenic acid, etc.

Cosmetics

Moisturizers: enhance skin barrier function (such as moisturizing essences, facial masks).
pH regulators: maintain the mildness of skin care products.

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