Record Information
Creation date2015-05-07 20:40:28 UTC
Update date2019-11-26 03:22:00 UTC
Primary IDFDB030975
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameL-threonate
DescriptionL-threonic acid, also known as L-threonate or L-threonic acid magnesium salt, belongs to sugar acids and derivatives class of compounds. Those are compounds containing a saccharide unit which bears a carboxylic acid group. L-threonic acid is soluble (in water) and a weakly acidic compound (based on its pKa). L-threonic acid can be found in a number of food items such as buffalo currant, yam, purslane, and bayberry, which makes L-threonic acid a potential biomarker for the consumption of these food products. L-threonic acid can be found primarily in blood. Threonic acid is a sugar acid derived from threose. The L-isomer is a metabolite of ascorbic acid (vitamin C). One study suggested that because L-threonate inhibits DKK1 expression in vitro, it may have potential in treatment of androgenic alopecia .
CAS Number7306-96-9
(2R,3S)-2,3,4-Trihydroxybutanoic acidKegg
Threonic acid, (R-(r*,s*))-isomerHMDB
Threonic acidHMDB
2,3,4-Trihydroxy-(threo)-butanoic acidHMDB
Threonic acid, (r*,r*)-isomerHMDB
L-Threonic acidGenerator
2,3,4-Trihydroxybutanoic acidHMDB
2,3,4-Trihydroxybutyric acidHMDB
Predicted Properties
Water Solubility488 g/LALOGPS
pKa (Strongest Acidic)3.4ChemAxon
pKa (Strongest Basic)-3ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count4ChemAxon
Polar Surface Area97.99 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity26.35 m³·mol⁻¹ChemAxon
Polarizability11.61 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaC4H8O5
IUPAC name(2R,3S)-2,3,4-trihydroxybutanoic acid
InChI IdentifierInChI=1S/C4H8O5/c5-1-2(6)3(7)4(8)9/h2-3,5-7H,1H2,(H,8,9)/t2-,3+/m0/s1
Isomeric SMILESOC[C@H](O)[C@@H](O)C(O)=O
Average Molecular Weight136.1033
Monoisotopic Molecular Weight136.037173366
Description belongs to the class of organic compounds known as sugar acids and derivatives. Sugar acids and derivatives are compounds containing a saccharide unit which bears a carboxylic acid group.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbohydrates and carbohydrate conjugates
Direct ParentSugar acids and derivatives
Alternative Parents
  • Beta-hydroxy acid
  • Short-chain hydroxy acid
  • Sugar acid
  • Alpha-hydroxy acid
  • Hydroxy acid
  • Monosaccharide
  • Fatty acid
  • Secondary alcohol
  • Polyol
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Alcohol
  • Carbonyl group
  • Primary alcohol
  • Hydrocarbon derivative
  • Organic oxide
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors

Biological location:


Industrial application:

Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
Physical stateNot Available
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
Spectrum TypeDescriptionSplash KeyView
GC-MSGC-MS Spectrum - GC-MS (4 TMS)splash10-0gc3-1980000000-1134cc7dbfebc81101f0JSpectraViewer | MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-08i0-9000000000-8d139618fe1977b7f75cJSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (4 TMS) - 70eV, Positivesplash10-05i9-9135200000-540f14ba652277646ad0JSpectraViewer
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-00kp-9400000000-65ee9acbf3bfc5e1217dJSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-00l2-9100000000-530757fa85c48c04e4f7JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-014j-9100000000-0598e87e111f68c2e5adJSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-014r-3900000000-2b3d3fb29e0133c070faJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-03di-9300000000-9c5553554eff5afd7d2cJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0r6v-9100000000-b760f5ab8de654f72611JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-009l-9300000000-cea0b9791733d92b7dacJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0abl-9100000000-5893bc2f3c3758ba4459JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0ab9-9000000000-b86ae9d1fd6d44595e98JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableJSpectraViewer
ChemSpider IDNot Available
ChEMBL IDNot Available
KEGG Compound IDNot Available
Pubchem Compound IDNot Available
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB 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
MSDSNot Available
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference