Chemical Component Summary

Identifiers(2S)-2-azanylbutanedioic acid
FormulaC4 H7 N O4
Molecular Weight133.10
Isomeric SMILESN[C@@H](CC(O)=O)C(O)=O

Chemical Details

Formal Charge0
Atom Count32
Chiral Atom Count1
Chiral AtomsCA
Bond Count15
Aromatic Bond Count0
Leaving AtomsOXT, H2, HXT

Drug Info: DrugBank

DrugBank IDDB00128 Different stereochemistry
NameL-Aspartic Acid
  • approved
  • nutraceutical
DescriptionOne of the non-essential amino acids commonly occurring in the L-form. It is found in animals and plants, especially in sugar cane and sugar beets. It may be a neurotransmitter. [PubChem]
  • (S)-2-aminobutanedioic acid
  • (S)-2-aminosuccinic acid
  • 2-Aminosuccinic acid
  • Asp
  • Aspartic acid
Brand Names
  • Aminosyn II
  • Aminosyn II 10%
  • Aminosyn II 10% With Electrolytes
  • Aminosyn II 15%
  • Aminosyn II 5% Inj
Affected OrganismHumans and other mammals
IndicationThere is no support for the claim that aspartates are exercise performance enhancers, i.e. ergogenic aids.
PharmacologyL-aspartate is considered a non-essential amino acid, meaning that, under normal physiological conditions, sufficient amounts of the amino acid are synthesized in the body to meet the body's requirements. L-aspartate is formed by the transamination of the Krebs cycle intermediate oxaloacetate. The amino acid serves as a precursor for synthesis of proteins, oligopeptides, purines, pyrimidines, nucleic acids and L-arginine. L-aspartate is a glycogenic amino acid, and it can also promote energy production via its metabolism in the Krebs cycle. These latter activities were the rationale for the claim that supplemental aspartate has an anti-fatigue effect on skeletal muscle, a claim that was never confirmed.
Mechanism of actionThere are also claims that L-aspartate has ergogenic effects, that it enhances performance in both prolonged exercise and short intensive exercise. It is hypothesized that L-aspartate, especially the potassium magnesium aspartate salt, spares stores of muscle glycogen and/or promotes a faster rate of glycogen resynthesis during exercise. It has also been hypothesized that L-aspartate can enhance short intensive exercise by serving as a substrate for energy production in the Krebs cycle and for stimulating the purine nucleotide cycle.
Route of administrationIntravenous
  • Amino Acids
  • Amino Acids, Acidic
  • Amino Acids, Dicarboxylic
  • Amino Acids, Peptides, and Proteins
  • Dietary Supplements
CAS number56-84-8

Drug Targets

NameSequence SearchPharmacological ActionActions
Calcium-binding mitochondrial carrier protein Aralar2MAAAKVALTKRADPAELRTIFLKYASIEKNGEFFMSPNDFVTRYLNIFGE...unknown
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Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682