Record Information
Creation date2011-09-21 00:24:55 UTC
Update date2015-10-09 22:32:39 UTC
Primary IDFDB023116
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameGuanidinosuccinic acid
DescriptionGuanidinosuccinic acid (GSA) is one of the earliest uremic toxins isolated and its toxicity identified. Its metabolic origins show that it arose from the oxidation of argininosuccinic acid (ASA) by free radicals. The stimulus for this oxidation, occurring optimally in the presence of the failed kidney, is the rising level of urea which, through enzyme inhibition, results in a decline in hepatic levels of the semi-essential amino acid, arginine. It is further noted that concentrations of GSA in both serum and urine decline sharply in animals and humans exposed to the essential amino acid, methionine. Uremic patients suffer from a defective ability to generate methyl groups due to anorexia, dietary restrictions and renal protein leakage. This leads to the accumulation of homocysteine, a substance known to produce vascular damage. Even in healthy subjects intake of choline together with methionine is insufficient to satisfy total metabolic requirements for methyl groups. In end-stage renal disease, therefore, protein restriction contributes to the build-up of toxins in uremia. Replacement using specific amino acid mixtures should be directed toward identified deficiencies and adequacy monitored by following serum levels of the related toxins, in this case GSA and homocysteine. (PMID 12701806) [HMDB]
CAS Number6133-30-8
(2S)-2-Carbamimidamidobutanedioic acidChEBI
L-N-Amidinoaspartic acidChEBI
N-(Aminoiminomethyl)-L-aspartic acidChEBI
N-Amidino-L-aspartic acidKegg
Guanidinosuccinic acid, (DL)-isomerHMDB
N-Carbamimidoyl-L-aspartic acidHMDB
Guanidinosuccinic acidChEBI
L-N-amidinoaspartic acidhmdb
N-(aminoiminomethyl)-L-aspartic acidhmdb
N-amidino-L-aspartic acidhmdb
N-carbamimidoyl-L-aspartic acidhmdb
Predicted Properties
Water Solubility2.82 g/LALOGPS
pKa (Strongest Acidic)2.98ChemAxon
pKa (Strongest Basic)12.23ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count5ChemAxon
Polar Surface Area136.5 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity47.25 m³·mol⁻¹ChemAxon
Polarizability15.13 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC5H9N3O4
IUPAC name(2S)-2-carbamimidamidobutanedioic acid
InChI IdentifierInChI=1S/C5H9N3O4/c6-5(7)8-2(4(11)12)1-3(9)10/h2H,1H2,(H,9,10)(H,11,12)(H4,6,7,8)/t2-/m0/s1
Isomeric SMILESNC(=N)N[C@@H](CC(O)=O)C(O)=O
Average Molecular Weight175.1427
Monoisotopic Molecular Weight175.059305791
Description Belongs to the class of organic compounds known as aspartic acid and derivatives. Aspartic acid and derivatives are compounds containing an aspartic acid or a derivative thereof resulting from reaction of aspartic acid at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentAspartic acid and derivatives
Alternative Parents
  • Aspartic acid or derivatives
  • Dicarboxylic acid or derivatives
  • Fatty acid
  • Guanidine
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Carboximidamide
  • Carboxylic acid
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organic oxygen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic nitrogen compound
  • Carbonyl group
  • Organic oxide
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physiological effect

Health effect:


Route of exposure:


Biological location:

Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
Physical stateSolid
Physical DescriptionNot Available
Mass CompositionNot Available
Melting PointNot Available
Boiling PointNot Available
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
DensityNot Available
Refractive IndexNot Available
TypeDescriptionSplash KeyView
Predicted GC-MSGuanidinosuccinic acid, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-000x-9600000000-6898be602fa231388ab5Spectrum
Predicted GC-MSGuanidinosuccinic acid, 2 TMS, Predicted GC-MS Spectrum - 70eV, Positivesplash10-00di-9282000000-37ec05543d3d8d30ad15Spectrum
TypeDescriptionSplash KeyView
MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-004i-1900000000-466615ceb5129f085333Spectrum
MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-00di-9000000000-e5868bbf32c1407fa030Spectrum
MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-006x-9000000000-f34cd801b9c1e714a6fcSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0089-1900000000-ab305bd5f1306019d2bbSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a5i-9500000000-e46a9bb7a8167700416dSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9000000000-cf381fa0309c6e1df17dSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4i-0900000000-766bed5b22ec642474b7Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-090r-6900000000-c59abb9d78dd85396ad9Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-03di-9000000000-809ece24ff681a989230Spectrum
1D NMR1H NMR SpectrumSpectrum
2D NMR[1H,13C] 2D NMR SpectrumSpectrum
ChemSpider ID388951
ChEMBL IDNot Available
KEGG Compound IDC03139
Pubchem Compound ID439918
Pubchem Substance IDNot Available
ChEBI ID17072
Phenol-Explorer IDNot Available
DrugBank IDNot Available
CRC / DFC (Dictionary of Food Compounds) IDNot Available
EAFUS IDNot Available
Dr. Duke IDNot Available
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDNot Available
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference