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Record Information
Version1.0
Creation Date2016-09-30 22:19:20 UTC
Update Date2020-05-21 16:28:29 UTC
MCDB ID BMDB0000076
Secondary Accession Numbers
  • BMDB00076
Metabolite Identification
Common NameDihydrouracil
DescriptionDihydrouracil belongs to the class of organic compounds known as pyrimidones. Pyrimidones are compounds that contain a pyrimidine ring, which bears a ketone. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions. Dihydrouracil exists as a solid, possibly soluble (in water), and an extremely weak basic (essentially neutral) compound (based on its pKa) molecule. Dihydrouracil exists in all living organisms, ranging from bacteria to humans. Dihydrouracil is a potentially toxic compound. Dihydrouracil has been found to be associated with several diseases known as liver disease, colorectal cancer, hypertension, and cerebral infarction; also dihydrouracil has been linked to the inborn metabolic disorders including dihydropyrimidine dehydrogenase deficiency.
Structure
Thumb
Synonyms
ValueSource
2,4-DioxotetrahydropyrimidineChEBI
5,6-Dihydro-2,4-dihydroxypyrimidineChEBI
Dihydro-2,4(1H,3H)-pyrimidinedioneChEBI
DIHYDROPYRIMIDINE-2,4(1H,3H)-dioneChEBI
DihydrouracileChEBI
HydrouracilChEBI
5,6-Dihydro-2,4(1H,3H)-pyrimidinedioneHMDB
5,6-DihydrouracilHMDB
Dihydro-pyrimidine-2,4-dioneHMDB
Chemical FormulaC4H6N2O2
Average Molecular Weight114.1026
Monoisotopic Molecular Weight114.042927446
IUPAC Name1,3-diazinane-2,4-dione
Traditional Namedihydrouracil
CAS Registry Number504-07-4
SMILES
O=C1CCNC(=O)N1
InChI Identifier
InChI=1S/C4H6N2O2/c7-3-1-2-5-4(8)6-3/h1-2H2,(H2,5,6,7,8)
InChI KeyOIVLITBTBDPEFK-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as pyrimidones. Pyrimidones are compounds that contain a pyrimidine ring, which bears a ketone. Pyrimidine is a 6-membered ring consisting of four carbon atoms and two nitrogen centers at the 1- and 3- ring positions.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassDiazines
Sub ClassPyrimidines and pyrimidine derivatives
Direct ParentPyrimidones
Alternative Parents
Substituents
  • N-acyl urea
  • Pyrimidone
  • Ureide
  • 1,3-diazinane
  • Dicarboximide
  • Urea
  • Carbonic acid derivative
  • Azacycle
  • Carboxylic acid derivative
  • Organic oxide
  • Organopnictogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Carbonyl group
  • Hydrocarbon derivative
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External Descriptors
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point279 - 281 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP-1.3ALOGPS
logP-1.2ChemAxon
logS-0.64ALOGPS
pKa (Strongest Acidic)11.73ChemAxon
pKa (Strongest Basic)-7.6ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area58.2 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity25.75 m³·mol⁻¹ChemAxon
Polarizability10.13 ųChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectrum TypeDescriptionSplash KeyDeposition DateView
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (2 TMS)splash10-00di-9700000000-4adeeb2f4f5a1111afb72014-06-16View Spectrum
GC-MSGC-MS Spectrum - GC-MS (1 TMS)splash10-00di-5900000000-8af1b81502646fa5b4172014-06-16View Spectrum
GC-MSGC-MS Spectrum - GC-MS (2 TMS)splash10-0fdo-9750000000-d2aaeeba1cf962175f842014-06-16View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-00di-9700000000-4adeeb2f4f5a1111afb72017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-00di-5900000000-8af1b81502646fa5b4172017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-0fdo-9750000000-d2aaeeba1cf962175f842017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-0f6w-2940000000-3430a0e2d1819021af1d2017-09-12View Spectrum
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-00di-3900000000-79f2d90a419b7469cb612017-09-12View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-004l-9100000000-55536f0571922b6c69fe2017-09-01View Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12View Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-03k9-9800000000-da772cea603c785c1df42012-07-24View Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-0a4i-9100000000-94a5f543e8c6be7b32042012-07-24View Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-0btc-9200000000-e9bf2ae82714a2a3a7372012-07-24View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Positivesplash10-014i-5900000000-0fe83e63f6e5d13478942012-08-31View Spectrum
LC-MS/MSLC-MS/MS Spectrum - , negativesplash10-03xr-6900000000-08aca1bc7f27b0e7cb082017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-014i-5900000000-53ea361c86b4f9fa284b2017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - , positivesplash10-00di-9300000000-a8599c09cd21e2f843292017-09-14View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 10V, Positivesplash10-01b9-9500000000-03c8b6a5b2dc3625d5d32021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 20V, Positivesplash10-0ab9-9000000000-331f648f78f506788b992021-09-20View Spectrum
LC-MS/MSLC-MS/MS Spectrum - 40V, Positivesplash10-052f-9000000000-824aa91d3f2de539f0bd2021-09-20View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-014i-2900000000-ad7f91d5265e53403dd62015-05-27View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0603-9200000000-4b30a83fb454e5bbffb82015-05-27View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-9000000000-ce54e3c860a95b0af4012015-05-27View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-03di-9800000000-d705e188f6700a76ef722015-05-27View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0006-9000000000-a26409d69a42597310042015-05-27View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9000000000-f00c4df547660023bee42015-05-27View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-014i-0900000000-b8f2cf36966bbbbb32852021-09-23View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-014i-9500000000-44775319047d2eddad492021-09-23View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-052f-9000000000-3cb7005ca8389854848e2021-09-23View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-03dl-7900000000-9d78d5698ad7865d17892021-09-25View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0006-9000000000-997cffdd9ad85c8992252021-09-25View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9000000000-a88e812ae86e53f6c2d62021-09-25View Spectrum
MSMass Spectrum (Electron Ionization)splash10-03fu-9400000000-5b9edda3479e7d0a0d282014-09-20View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, experimental)Not Available2012-12-04View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, DMSO-d6, experimental)Not Available2014-09-20View Spectrum
1D NMR13C NMR Spectrum (1D, 15.08 MHz, DMSO-d6, experimental)Not Available2014-09-23View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)Not Available2021-09-16View Spectrum
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental)Not Available2012-12-04View Spectrum
Concentrations
StatusValueReferenceDetails
Detected but not QuantifiedNot Applicable details
HMDB IDHMDB0000076
DrugBank IDDB01849
Phenol Explorer Compound IDNot Available
FoodDB IDFDB030556
KNApSAcK IDNot Available
Chemspider ID629
KEGG Compound IDC00429
BioCyc IDDI-H-URACIL
BiGG ID34956
Wikipedia LinkDihydrouracil
METLIN ID285
PubChem Compound649
PDB IDNot Available
ChEBI ID15901
References
Synthesis ReferenceBhat, K. S.; Rao, A. S. Synthesis of uracil, 6-methyluracil and some dihydrouracils. Organic Preparations and Procedures International (1983), 15(5), 303-13.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Melzer N, Wittenburg D, Hartwig S, Jakubowski S, Kesting U, Willmitzer L, Lisec J, Reinsch N, Repsilber D: Investigating associations between milk metabolite profiles and milk traits of Holstein cows. J Dairy Sci. 2013 Mar;96(3):1521-34. doi: 10.3168/jds.2012-5743. [PubMed:23438684 ]