Aspartic acid

Aspartic acid

One of the twenty protein-building amino acids.



aspartic acid, Asp, amino acid, peptide, polypeptide, protein, polar side chain, zwitterionic structure, peptide bond, amino acid sequence, molecule, organic chemistry, chemistry, biology, biochemistry

Related items


Aspartic acid (C₄H₇NO₄)


Molar mass: 133.10 g/mol

Melting point: 270 °C (518 °F)

Boiling point: 324 °C (615.2 °F)

Density: 1.7 g/cm³ (0.0614 lb/in³)


Aspartic acid is a non-essential amino acid. It is a colorless, crystalline substance that dissolves weakly in water and does not dissolve in alcohol.

Occurrence and production

Aspartic acid is the building block of many types of proteins: it is found in zein, that is, maize protein; in casein, the protein in cow’s milk; and in wool keratine. Biosynthesis of aspartic acid proceeds from oxaloacetic acid.


Aspartic acid is a neurotransmitter in the central nervous system of vertebrates. It is also used in the treatment of leukemia.

Related items

Amino acids

Amino acids are the monomers of proteins.

Added to your cart.