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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2021-09-23 21:02:30 UTC
Update Date2021-09-23 21:02:30 UTC
HMDB IDHMDB0302835
Secondary Accession NumbersNone
Metabolite Identification
Common NameOryzenin
DescriptionOryzenin, also known as thiamin or vitamin b1, is a member of the class of compounds known as thiamines. Thiamines are compounds containing a thiamine moiety, which is structurally characterized by a 3-[(4-Amino-2-methyl-pyrimidin-5-yl)methyl]-4-methyl-thiazol-5-yl backbone. Oryzenin is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). Oryzenin can be found in rice, which makes oryzenin a potential biomarker for the consumption of this food product.
Structure
Thumb
Synonyms
ValueSource
3-[(4-Amino-2-methyl-5-pyrimidinyl)methyl]-5-(2-hydroxyethyl)-4-methylthiazolium chlorideChEBI
ThiaminChEBI
ThiamineChEBI
Thiamine chlorideChEBI
Thiamine monochlorideChEBI
ThiaminumChEBI
TiaminaChEBI
Vitamin b1ChEBI
Chemical FormulaC12H17ClN4OS
Average Molecular Weight300.808
Monoisotopic Molecular Weight300.081159583
IUPAC Name5-(2-hydroxyethyl)-3-[(6-imino-2-methyl-1,6-dihydropyrimidin-5-yl)methyl]-4-methyl-1,3-thiazol-3-ium chloride
Traditional Nameβ-amin chloride
CAS Registry NumberNot Available
SMILES
[Cl-].CC1=C(CCO)SC=[N+]1CC1=CN=C(C)NC1=N
InChI Identifier
InChI=1S/C12H17N4OS.ClH/c1-8-11(3-4-17)18-7-16(8)6-10-5-14-9(2)15-12(10)13;/h5,7,17H,3-4,6H2,1-2H3,(H2,13,14,15);1H/q+1;/p-1
InChI KeyMYVIATVLJGTBFV-UHFFFAOYSA-M
Chemical Taxonomy
Description Belongs to the class of organic compounds known as thiamines. Thiamines are compounds containing a thiamine moiety, which is structurally characterized by a 3-[(4-Amino-2-methyl-pyrimidin-5-yl)methyl]-4-methyl-thiazol-5-yl backbone.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassDiazines
Sub ClassPyrimidines and pyrimidine derivatives
Direct ParentThiamines
Alternative Parents
Substituents
  • Thiamine
  • 4,5-disubstituted 1,3-thiazole
  • Aminopyrimidine
  • Imidolactam
  • Azole
  • Thiazole
  • Heteroaromatic compound
  • Azacycle
  • Hydrocarbon derivative
  • Organic salt
  • Alcohol
  • Organopnictogen compound
  • Primary amine
  • Primary alcohol
  • Organooxygen compound
  • Organonitrogen compound
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organic chloride salt
  • Amine
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
logP-1.9ALOGPS
logP-3.8ChemAxon
logS-4.3ALOGPS
pKa (Strongest Acidic)8.36ChemAxon
pKa (Strongest Basic)2.14ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area72.35 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity82.18 m³·mol⁻¹ChemAxon
Polarizability28.09 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
AllCCS[M+H]+190.08332859911
AllCCS[M+H-H2O]+187.2932859911
AllCCS[M+Na]+193.40132859911
AllCCS[M+NH4]+192.66232859911
AllCCS[M-H]-167.6132859911
AllCCS[M+Na-2H]-168.17332859911
AllCCS[M+HCOO]-168.90432859911
DeepCCS[M+H]+165.2330932474
DeepCCS[M-H]-162.84530932474
DeepCCS[M-2H]-195.91730932474
DeepCCS[M+Na]+171.29630932474

Predicted Retention Times

Underivatized

Chromatographic MethodRetention TimeReference
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid430.3 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid227.8 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid74.9 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid161.4 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid41.8 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid286.7 seconds40023050
BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid248.5 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)790.9 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid567.1 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid41.6 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid632.9 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid179.9 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid202.5 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate544.7 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA586.4 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water402.7 seconds40023050

Predicted Kovats Retention Indices

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Oryzenin,2TMS,isomer #1CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C)=C2C)C(=N[Si](C)(C)C)[NH]12354.1Semi standard non polar33892256
Oryzenin,2TMS,isomer #1CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C)=C2C)C(=N[Si](C)(C)C)[NH]12532.0Standard non polar33892256
Oryzenin,2TMS,isomer #1CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C)=C2C)C(=N[Si](C)(C)C)[NH]13308.6Standard polar33892256
Oryzenin,2TMS,isomer #2CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C)=C2C)C(=N)N1[Si](C)(C)C2497.0Semi standard non polar33892256
Oryzenin,2TMS,isomer #2CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C)=C2C)C(=N)N1[Si](C)(C)C2579.7Standard non polar33892256
Oryzenin,2TMS,isomer #2CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C)=C2C)C(=N)N1[Si](C)(C)C3327.6Standard polar33892256
Oryzenin,2TMS,isomer #3CC1=NC=C(C[N+]2=CSC(CCO)=C2C)C(=N[Si](C)(C)C)N1[Si](C)(C)C2526.4Semi standard non polar33892256
Oryzenin,2TMS,isomer #3CC1=NC=C(C[N+]2=CSC(CCO)=C2C)C(=N[Si](C)(C)C)N1[Si](C)(C)C2571.2Standard non polar33892256
Oryzenin,2TMS,isomer #3CC1=NC=C(C[N+]2=CSC(CCO)=C2C)C(=N[Si](C)(C)C)N1[Si](C)(C)C3243.5Standard polar33892256
Oryzenin,3TMS,isomer #1CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C)=C2C)C(=N[Si](C)(C)C)N1[Si](C)(C)C2512.5Semi standard non polar33892256
Oryzenin,3TMS,isomer #1CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C)=C2C)C(=N[Si](C)(C)C)N1[Si](C)(C)C2625.1Standard non polar33892256
Oryzenin,3TMS,isomer #1CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C)=C2C)C(=N[Si](C)(C)C)N1[Si](C)(C)C3019.7Standard polar33892256
Oryzenin,2TBDMS,isomer #1CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C(C)(C)C)=C2C)C(=N[Si](C)(C)C(C)(C)C)[NH]12781.6Semi standard non polar33892256
Oryzenin,2TBDMS,isomer #1CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C(C)(C)C)=C2C)C(=N[Si](C)(C)C(C)(C)C)[NH]12946.1Standard non polar33892256
Oryzenin,2TBDMS,isomer #1CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C(C)(C)C)=C2C)C(=N[Si](C)(C)C(C)(C)C)[NH]13401.0Standard polar33892256
Oryzenin,2TBDMS,isomer #2CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C(C)(C)C)=C2C)C(=N)N1[Si](C)(C)C(C)(C)C2945.5Semi standard non polar33892256
Oryzenin,2TBDMS,isomer #2CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C(C)(C)C)=C2C)C(=N)N1[Si](C)(C)C(C)(C)C2999.0Standard non polar33892256
Oryzenin,2TBDMS,isomer #2CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C(C)(C)C)=C2C)C(=N)N1[Si](C)(C)C(C)(C)C3358.2Standard polar33892256
Oryzenin,2TBDMS,isomer #3CC1=NC=C(C[N+]2=CSC(CCO)=C2C)C(=N[Si](C)(C)C(C)(C)C)N1[Si](C)(C)C(C)(C)C2943.8Semi standard non polar33892256
Oryzenin,2TBDMS,isomer #3CC1=NC=C(C[N+]2=CSC(CCO)=C2C)C(=N[Si](C)(C)C(C)(C)C)N1[Si](C)(C)C(C)(C)C2986.8Standard non polar33892256
Oryzenin,2TBDMS,isomer #3CC1=NC=C(C[N+]2=CSC(CCO)=C2C)C(=N[Si](C)(C)C(C)(C)C)N1[Si](C)(C)C(C)(C)C3286.2Standard polar33892256
Oryzenin,3TBDMS,isomer #1CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C(C)(C)C)=C2C)C(=N[Si](C)(C)C(C)(C)C)N1[Si](C)(C)C(C)(C)C3124.6Semi standard non polar33892256
Oryzenin,3TBDMS,isomer #1CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C(C)(C)C)=C2C)C(=N[Si](C)(C)C(C)(C)C)N1[Si](C)(C)C(C)(C)C3232.2Standard non polar33892256
Oryzenin,3TBDMS,isomer #1CC1=NC=C(C[N+]2=CSC(CCO[Si](C)(C)C(C)(C)C)=C2C)C(=N[Si](C)(C)C(C)(C)C)N1[Si](C)(C)C(C)(C)C3226.3Standard polar33892256
Spectra

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzenin 10V, Positive-QTOFsplash10-0udi-0009000000-cd32abfed76b69866da82016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzenin 20V, Positive-QTOFsplash10-0udi-0009000000-cd32abfed76b69866da82016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzenin 40V, Positive-QTOFsplash10-0udi-0009000000-cd32abfed76b69866da82016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzenin 10V, Negative-QTOFsplash10-0002-0090000000-a7fcf2f90dad919c8b5e2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzenin 20V, Negative-QTOFsplash10-0002-0090000000-a7fcf2f90dad919c8b5e2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Oryzenin 40V, Negative-QTOFsplash10-0002-0090000000-a7fcf2f90dad919c8b5e2016-08-03Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
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 IDFDB006415
KNApSAcK IDC00000775
Chemspider ID5819
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkThiamine
METLIN IDNot Available
PubChem CompoundNot Available
PDB IDNot Available
ChEBI ID33283
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1389481
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available