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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 21:34:11 UTC
Update Date2023-02-21 17:25:22 UTC
HMDB IDHMDB0036431
Secondary Accession Numbers
  • HMDB36431
Metabolite Identification
Common Name1,3,9-Trimethyluric acid
Description1,3,9-Trimethyluric acid, also known as 1,3,9-trimethylate, belongs to the class of organic compounds known as xanthines. These are purine derivatives with a ketone group conjugated at carbons 2 and 6 of the purine moiety. 1,3,9-Trimethyluric acid has been detected, but not quantified in, a few different foods, such as arabica coffees (Coffea arabica), coffee and coffee products, and robusta coffees (Coffea canephora). This could make 1,3,9-trimethyluric acid a potential biomarker for the consumption of these foods. Based on a literature review very few articles have been published on 1,3,9-Trimethyluric acid.
Structure
Data?1677000322
Synonyms
ValueSource
1,3,9-TrimethylateGenerator
1,3,9-Trimethylic acidGenerator
1,3,9-Trimethyl-7,9-dihydro-1H-purine-2,6,8(3H)-trioneHMDB
7,9-dihydro-1,3,9-Trimethyl-1H-purine-2,6,8(3H)-trioneHMDB
8-OxocaffeineHMDB
Chemical FormulaC8H10N4O3
Average Molecular Weight210.19
Monoisotopic Molecular Weight210.075290206
IUPAC Name1,3,9-trimethyl-2,3,6,7,8,9-hexahydro-1H-purine-2,6,8-trione
Traditional Name1,3,9-trimethyl-7H-purine-2,6,8-trione
CAS Registry Number7464-93-9
SMILES
CN1C(=O)NC2=C1N(C)C(=O)N(C)C2=O
InChI Identifier
InChI=1S/C8H10N4O3/c1-10-5-4(9-7(10)14)6(13)12(3)8(15)11(5)2/h1-3H3,(H,9,14)
InChI KeyCWENCZHQIWXCCA-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as xanthines. These are purine derivatives with a ketone group conjugated at carbons 2 and 6 of the purine moiety.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassImidazopyrimidines
Sub ClassPurines and purine derivatives
Direct ParentXanthines
Alternative Parents
Substituents
  • Xanthine
  • 6-oxopurine
  • Purinone
  • Alkaloid or derivatives
  • Pyrimidone
  • N-substituted imidazole
  • Pyrimidine
  • Azole
  • Imidazole
  • Heteroaromatic compound
  • Vinylogous amide
  • Lactam
  • Urea
  • Azacycle
  • Hydrocarbon derivative
  • Organic oxide
  • Organopnictogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point335 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility29 g/LALOGPS
logP-0.46ALOGPS
logP-0.87ChemAxon
logS-0.86ALOGPS
pKa (Strongest Acidic)7.78ChemAxon
pKa (Strongest Basic)-5.6ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area72.96 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity60.32 m³·mol⁻¹ChemAxon
Polarizability19.76 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+146.11331661259
DarkChem[M-H]-143.89231661259
DeepCCS[M+H]+139.01630932474
DeepCCS[M-H]-136.62130932474
DeepCCS[M-2H]-170.77330932474
DeepCCS[M+Na]+145.35930932474
AllCCS[M+H]+143.632859911
AllCCS[M+H-H2O]+139.632859911
AllCCS[M+NH4]+147.332859911
AllCCS[M+Na]+148.432859911
AllCCS[M-H]-144.532859911
AllCCS[M+Na-2H]-144.832859911
AllCCS[M+HCOO]-145.232859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
1,3,9-Trimethyluric acidCN1C(=O)NC2=C1N(C)C(=O)N(C)C2=O2312.1Standard polar33892256
1,3,9-Trimethyluric acidCN1C(=O)NC2=C1N(C)C(=O)N(C)C2=O2194.2Standard non polar33892256
1,3,9-Trimethyluric acidCN1C(=O)NC2=C1N(C)C(=O)N(C)C2=O1984.8Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
1,3,9-Trimethyluric acid,1TMS,isomer #1CN1C(=O)C2=C(N(C)C1=O)N(C)C(=O)N2[Si](C)(C)C1952.7Semi standard non polar33892256
1,3,9-Trimethyluric acid,1TMS,isomer #1CN1C(=O)C2=C(N(C)C1=O)N(C)C(=O)N2[Si](C)(C)C2195.8Standard non polar33892256
1,3,9-Trimethyluric acid,1TBDMS,isomer #1CN1C(=O)C2=C(N(C)C1=O)N(C)C(=O)N2[Si](C)(C)C(C)(C)C2148.6Semi standard non polar33892256
1,3,9-Trimethyluric acid,1TBDMS,isomer #1CN1C(=O)C2=C(N(C)C1=O)N(C)C(=O)N2[Si](C)(C)C(C)(C)C2404.1Standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 1,3,9-Trimethyluric acid GC-MS (Non-derivatized) - 70eV, Positivesplash10-0udj-2910000000-6282aab8072b7e149b802017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 1,3,9-Trimethyluric acid GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 1,3,9-Trimethyluric acid GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1,3,9-Trimethyluric acid 10V, Negative-QTOFsplash10-0a4i-0190000000-30bafcc29f7f8f52e84c2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1,3,9-Trimethyluric acid 20V, Negative-QTOFsplash10-0a4i-0390000000-16f3b19561d03e23d20b2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1,3,9-Trimethyluric acid 40V, Negative-QTOFsplash10-05mo-4900000000-6ad4bacaedfffaa2f5022016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1,3,9-Trimethyluric acid 10V, Negative-QTOFsplash10-0a4i-0090000000-42027b355fe6a1bc1d062021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1,3,9-Trimethyluric acid 20V, Negative-QTOFsplash10-0a4i-7690000000-d02498f7bb599d5feeda2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1,3,9-Trimethyluric acid 40V, Negative-QTOFsplash10-0fdo-9800000000-7d1539e06616315f6a932021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1,3,9-Trimethyluric acid 10V, Positive-QTOFsplash10-03di-0090000000-2502fd56810d56eea8532016-08-02Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1,3,9-Trimethyluric acid 20V, Positive-QTOFsplash10-0ik9-0790000000-8a65f129c8151d98a8632016-08-02Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1,3,9-Trimethyluric acid 40V, Positive-QTOFsplash10-0wb9-3900000000-2c1f0413f2c6b3dc3f132016-08-02Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1,3,9-Trimethyluric acid 10V, Positive-QTOFsplash10-03di-0090000000-6081cca74a09f579f8432021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1,3,9-Trimethyluric acid 20V, Positive-QTOFsplash10-03di-0290000000-c55e377d0f3a2f58f18f2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 1,3,9-Trimethyluric acid 40V, Positive-QTOFsplash10-0092-9600000000-367fec34feb776dbef382021-09-22Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-25Wishart LabView Spectrum

IR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-)2023-02-04FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+)2023-02-04FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)2023-02-04FELIX labView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
  • Extracellular
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB015318
KNApSAcK IDNot Available
Chemspider ID73977
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound81972
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .