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Record Information
Version2.0
Created at2022-05-11 16:24:39 UTC
Updated at2022-05-11 16:24:39 UTC
NP-MRD IDNP0086567
Secondary Accession NumbersNone
Natural Product Identification
Common Name2-Hydroxyestradiol-3-methyl ether
Description2-Methylcitric acid, also known as 2-methylcitrate, belongs to the class of organic compounds known as tricarboxylic acids and derivatives. These are carboxylic acids containing exactly three carboxyl groups. 2-Methylcitric acid is an extremely weak basic (essentially neutral) compound (based on its pKa). 2-Methylcitric acid exists in all living organisms, ranging from bacteria to humans. Outside of the human body, 2-Methylcitric acid has been detected, but not quantified in, milk (cow). This could make 2-methylcitric acid a potential biomarker for the consumption of these foods. 2-Methylcitric acid is a potentially toxic compound. 2-Hydroxyestradiol-3-methyl ether was first documented in 1981 (PMID: 7313494). 2-Methylcitric acid, with regard to humans, has been found to be associated with the diseases such as iron deficiency; 2-methylcitric acid has also been linked to several inborn metabolic disorders including biotinidase deficiency, isovaleric acidemia, vitamin B12 deficiency, and propionic acidemia (PMID: 8345822) (PMID: 12113988).
Structure
Thumb
Synonyms
ValueSource
2-Hydroxy-1,2,3-butanetricarboxylic acidChEBI
2-Hydroxy-1,2,3-butanetricarboxylateGenerator
2-MethylcitrateGenerator
(2S,3S)-2-MethylcitrateHMDB
2-Hydroxybutane-1,2,3-tricarboxylateHMDB
2-Hydroxybutane-1,2,3-tricarboxylic acidHMDB
2-Methylcitric acid, 3H-labeledHMDB
3-Carboxy-3-hydroxy-2-methylpentanedioic acidHMDB
Methylcitric acidHMDB
(17b)-3-Methoxy-estra-1,3,5(10)-triene-2,17-diolHMDB
2,3,17beta-Trihydroxy-1,3,5[10]-estratriene 2-methyl etherHMDB, ChEBI
2-Hydroxy-17b-estradiol 3-methyl etherHMDB
2-Hydroxy-3-methoxyestradiolHMDB, MeSH
2-Hydroxyestradiol 3-methyl etherHMDB
2-Hydroxyestradiol-3-methylether2-hydroxy-3-methoxy-17beta-estradiolHMDB
2H3MeOE2HMDB
3,17beta-Dihydroxy-2-methoxy-1,3,5[10]-estratrieneHMDB, ChEBI
3-Methoxy-1,3,5[10]-estratriene-2,17beta-diolHMDB, ChEBI
3-Methoxy-estra-1,3,5(10)-triene-2,17b-diolHMDB
3-O-Methyl-2-hydroxyestradiolHMDB, ChEBI
(17beta)-3-Methoxyestra-1(10),2,4-triene-2,17-diolChEBI
2-Hydroxy-3-methoxy-17beta-estradiolChEBI
(17b)-3-Methoxyestra-1(10),2,4-triene-2,17-diolGenerator
(17Β)-3-methoxyestra-1(10),2,4-triene-2,17-diolGenerator
2,3,17b-Trihydroxy-1,3,5[10]-estratriene 2-methyl etherGenerator
2,3,17Β-trihydroxy-1,3,5[10]-estratriene 2-methyl etherGenerator
2-Hydroxy-3-methoxy-17b-estradiolGenerator
2-Hydroxy-3-methoxy-17β-estradiolGenerator
3,17b-Dihydroxy-2-methoxy-1,3,5[10]-estratrieneGenerator
3,17Β-dihydroxy-2-methoxy-1,3,5[10]-estratrieneGenerator
3-Methoxy-1,3,5[10]-estratriene-2,17b-diolGenerator
3-Methoxy-1,3,5[10]-estratriene-2,17β-diolGenerator
2-OH-3-MeOE2MeSH, HMDB
Chemical FormulaC19H26O3
Average Mass302.4079 Da
Monoisotopic Mass302.18819 Da
IUPAC Name(1S,10R,11S,14S,15S)-5-methoxy-15-methyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadeca-2(7),3,5-triene-4,14-diol
Traditional Name(1S,10R,11S,14S,15S)-5-methoxy-15-methyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadeca-2(7),3,5-triene-4,14-diol
CAS Registry NumberNot Available
SMILES
[H][C@@]12CC[C@H](O)[C@@]1(C)CC[C@]1([H])C3=C(CC[C@@]21[H])C=C(OC)C(O)=C3
InChI Identifier
InChI=1S/C19H26O3/c1-19-8-7-12-13(15(19)5-6-18(19)21)4-3-11-9-17(22-2)16(20)10-14(11)12/h9-10,12-13,15,18,20-21H,3-8H2,1-2H3/t12-,13+,15-,18-,19-/m0/s1
InChI KeyMMKYSUOJWFKECQ-SSTWWWIQSA-N
Experimental Spectra
Not Available
Predicted Spectra
Spectrum TypeDescriptionDepositor IDDepositor OrganizationDepositorDeposition DateView
1D NMR13C NMR Spectrum (1D, 25 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 252 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 50 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 75 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 101 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 126 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 151 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 176 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 201 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR13C NMR Spectrum (1D, 226 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Chemical Shift Submissions
Not Available
Species
Species of Origin
Species NameSourceReference
Anas platyrhynchosFooDB
AnatidaeFooDB
Anser anserFooDB
Bison bisonFooDB
Bos taurusFooDB
Bos taurus X Bison bisonFooDB
Bubalus bubalisFooDB
Capra aegagrus hircusFooDB
CervidaeFooDB
Cervus canadensisFooDB
ColumbaFooDB
ColumbidaeFooDB
Dromaius novaehollandiaeFooDB
Equus caballusFooDB
Gallus gallusFooDB
Lagopus mutaFooDB
LeporidaeFooDB
Lepus timidusFooDB
Melanitta fuscaFooDB
Meleagris gallopavoFooDB
Numida meleagrisFooDB
OdocoileusFooDB
OryctolagusFooDB
Ovis ariesFooDB
PhasianidaeFooDB
Phasianus colchicusFooDB
Struthio camelusFooDB
Sus scrofaFooDB
Sus scrofa domesticaFooDB
Chemical Taxonomy
Description Belongs to the class of organic compounds known as tricarboxylic acids and derivatives. These are carboxylic acids containing exactly three carboxyl groups.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassTricarboxylic acids and derivatives
Direct ParentTricarboxylic acids and derivatives
Alternative Parents
Substituents
  • Tricarboxylic acid or derivatives
  • Hydroxy acid
  • Alpha-hydroxy acid
  • Tertiary alcohol
  • Carboxylic acid
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Alcohol
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP3.7ALOGPS
logP3.59ChemAxon
logS-4.5ALOGPS
pKa (Strongest Acidic)10.32ChemAxon
pKa (Strongest Basic)-0.88ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area49.69 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity86.37 m³·mol⁻¹ChemAxon
Polarizability35.22 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDHMDB0000379
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB021997
KNApSAcK IDNot Available
Chemspider ID500
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG ID39369
Wikipedia LinkNot Available
METLIN ID5368
PubChem Compound515
PDB IDNot Available
ChEBI ID30835
Good Scents IDNot Available
References
General References
  1. Allen RH, Stabler SP, Savage DG, Lindenbaum J: Elevation of 2-methylcitric acid I and II levels in serum, urine, and cerebrospinal fluid of patients with cobalamin deficiency. Metabolism. 1993 Aug;42(8):978-88. [PubMed:8345822 ]
  2. Bergstrom T, Greter J, Levin AH, Steen G, Tryding N, Wass U: Propionyl-CoA carboxylase deficiency: case report, effect of low-protein diet and identification of 3-oxo-2-methylvaleric acid 3-hydroxy-2-methylvaleric acid, and maleic acid in urine. Scand J Clin Lab Invest. 1981 Apr;41(2):117-26. [PubMed:7313494 ]
  3. Busch M, Stein G, Poppitz W, Hein G, Muller A: Validated capillary gas chromatographic-mass spectrometric assay to determine 2-methylcitric acid I and II levels in human serum by using a pulsed splitless injection procedure. J Chromatogr B Analyt Technol Biomed Life Sci. 2002 Aug 5;775(2):215-23. doi: 10.1016/s1570-0232(02)00293-3. [PubMed:12113988 ]