Record Information
Creation date2011-09-21 00:18:14 UTC
Update date2015-10-09 22:30:46 UTC
Primary IDFDB022705
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameTetrahydrofolic acid
DescriptionTetrahydrofolate is a soluble coenzyme (vitamin B9) that is synthesized de novo by plants and microorganisms, and absorbed from the diet by animals. It is composed of three distinct parts: a pterin ring, a p-ABA (p-aminobenzoic acid) and a polyglutamate chain with a number of residues varying between 1 and 8. Only the tetra-reduced form of the molecule serves as a coenzyme for C1 transfer reactions. In biological systems, the C1-units exist under various oxidation states and the different tetrahydrofolate derivatives constitute a family of related molecules named indistinctly under the generic term folate. (PMID 16042593) Folate is important for cells and tissues that rapidly divide. Cancer cells divide rapidly, and drugs that interfere with folate metabolism are used to treat cancer. Methotrexate is a drug often used to treat cancer because it inhibits the production of the active form, tetrahydrofolate. Unfortunately, methotrexate can be toxic, producing side effects such as inflammation in the digestive tract that make it difficult to eat normally. -- Wikipedia; Signs of folic acid deficiency are often subtle. Diarrhea, loss of appetite, and weight loss can occur. Additional signs are weakness, sore tongue, headaches, heart palpitations, irritability, and behavioral disorders. Women with folate deficiency who become pregnant are more likely to give birth to low birth weight and premature infants, and infants with neural tube defects. In adults, anemia is a sign of advanced folate deficiency. In infants and children, folate deficiency can slow growth rate. Some of these symptoms can also result from a variety of medical conditions other than folate deficiency. It is important to have a physician evaluate these symptoms so that appropriate medical care can be given. -- Wikipedia; Folinic acid is a form of folate that can help 'rescue' or reverse the toxic effects of methotrexate. Folinic acid is not the same as folic acid. Folic acid supplements have little established role in cancer chemotherapy. There have been cases of severe adverse effects of accidental substitution of folic acid for folinic acid in patients receiving methotrexate cancer chemotherapy. It is important for anyone receiving methotrexate to follow medical advice on the use of folic or folinic acid supplements. -- Wikipedia Low concentrations of folate, vitamin B12, or vitamin B6 may increase the level of homocysteine, an amino acid normally found in blood. There is evidence that an elevated homocysteine level is an independent risk factor for heart disease and stroke. The evidence suggests that high levels of homocysteine may damage coronary arteries or make it easier for blood clotting cells called platelets to clump together and form a clot. However, there is currently no evidence available to suggest that lowering homocysteine with vitamins will reduce your risk of heart disease. Clinical intervention trials are needed to determine whether supplementation with folic acid, vitamin B12 or vitamin B6 can lower your risk of developing coronary heart disease. -- Wikipedia [HMDB]
CAS Number135-16-0
5,6,7,8-Tetrahydrofolic acidMeSH
5,6,7,8-Tetrahydrofolic acid, (D-(-))-isomerMeSH
5,6,7,8-Tetrahydrofolic acid, ion (2-)-isomerMeSH
5,6,7,8-Tetrahydrofolic acid, (L)-isomerMeSH
Tetrahydrofolic acidMeSH
(6S)-Tetrahydrofolic acidhmdb
Tetrahydropteroyl mono-L-glutamatehmdb
Predicted Properties
Water Solubility0.21 g/LALOGPS
pKa (Strongest Acidic)2.04ChemAxon
pKa (Strongest Basic)5.76ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count12ChemAxon
Hydrogen Donor Count9ChemAxon
Polar Surface Area208.26 ŲChemAxon
Rotatable Bond Count9ChemAxon
Refractivity132.4 m³·mol⁻¹ChemAxon
Polarizability44.54 ųChemAxon
Number of Rings3ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaC19H23N7O6
IUPAC name2-[(4-{[(4-hydroxy-2-imino-1,2,5,6,7,8-hexahydropteridin-6-yl)methyl]amino}phenyl)formamido]pentanedioic acid
InChI IdentifierInChI=1S/C19H23N7O6/c20-19-25-15-14(17(30)26-19)23-11(8-22-15)7-21-10-3-1-9(2-4-10)16(29)24-12(18(31)32)5-6-13(27)28/h1-4,11-12,21,23H,5-8H2,(H,24,29)(H,27,28)(H,31,32)(H4,20,22,25,26,30)
Isomeric SMILESOC(=O)CCC(NC(=O)C1=CC=C(NCC2CNC3=C(N2)C(O)=NC(=N)N3)C=C1)C(O)=O
Average Molecular Weight445.4292
Monoisotopic Molecular Weight445.170981503
DescriptionThis compound belongs to the class of chemical entities known as tetrahydrofolic acids. These are heterocyclic compounds based on the 5,6,7,8-tetrahydropteroic acid skeleton conjugated with at least one L-glutamic acid unit.
KingdomChemical entities
Super ClassOrganic compounds
ClassOrganoheterocyclic compounds
Sub ClassPteridines and derivatives
Direct ParentTetrahydrofolic acids
Alternative Parents
  • Tetrahydrofolic acid
  • Glutamic acid or derivatives
  • N-acyl-alpha amino acid or derivatives
  • N-acyl-alpha-amino acid
  • Hippuric acid
  • Hippuric acid or derivatives
  • Alpha-amino acid or derivatives
  • Aminobenzamide
  • Aminobenzoic acid or derivatives
  • Benzamide
  • Benzoic acid or derivatives
  • Benzoyl
  • Phenylalkylamine
  • Aniline or substituted anilines
  • Aminopyrimidine
  • Secondary aliphatic/aromatic amine
  • Pyrimidone
  • Monocyclic benzene moiety
  • Pyrimidine
  • Primary aromatic amine
  • Benzenoid
  • Dicarboxylic acid or derivatives
  • Heteroaromatic compound
  • Vinylogous amide
  • Amino acid or derivatives
  • Secondary carboxylic acid amide
  • Amino acid
  • Carboxamide group
  • Secondary amine
  • Carboxylic acid
  • Carboxylic acid derivative
  • Azacycle
  • Organonitrogen compound
  • Carbonyl group
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Amine
  • Organic oxide
  • Organopnictogen compound
  • Organic oxygen compound
  • Primary amine
  • Organooxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
OntologyNo ontology term
Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
Physical stateSolid
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
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-0002-7796610000-0937514a7f23431b726eJSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-0nor-3269210000-20105ed6a7a6e24e2441JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-00kr-1935200000-a9449c19c1ae3b0d70daJSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0032-0431900000-ff1f3948e47561161293JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-001i-0952300000-ed9d84bc39d490f6210eJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-001i-0920000000-0d0efcb6c323340d20b9JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0006-0001900000-abb4cec0eb79b0bd2de1JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0v4l-2356900000-2fd17d2f587bbd5e882cJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9441000000-8c630c7a3633467d6bb3JSpectraViewer
1D NMR1H NMR SpectrumNot AvailableJSpectraViewer
2D NMR[1H,1H] 2D NMR SpectrumNot AvailableJSpectraViewer
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableJSpectraViewer
ChemSpider ID18714427
ChEMBL IDNot Available
KEGG Compound IDC00101
Pubchem Compound ID13781857
Pubchem Substance IDNot Available
ChEBI ID15635
Phenol-Explorer IDNot Available
DrugBank IDDB00116
CRC / DFC (Dictionary of Food Compounds) IDNot Available
EAFUS IDNot Available
Dr. Duke IDNot Available
BIGG ID33856
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDTetrahydrofolic_acid
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
NameGene NameUniProt ID
Trifunctional purine biosynthetic protein adenosine-3GARTP22102
Aminomethyltransferase, mitochondrialAMTP48728
Serine hydroxymethyltransferase, mitochondrialSHMT2P34897
Serine hydroxymethyltransferase, cytosolicSHMT1P34896
Glycine cleavage system H protein, mitochondrialGCSHP23434
Bifunctional purine biosynthesis protein PURHATICP31939
Folylpolyglutamate synthase, mitochondrialFPGSQ05932
C-1-tetrahydrofolate synthase, cytoplasmicMTHFD1P11586
Monofunctional C1-tetrahydrofolate synthase, mitochondrialMTHFD1LQ6UB35
Methylenetetrahydrofolate dehydrogenase (NADP+ dependent) 2, methenyltetrahydrofolate cyclohydrolaseMTHFD2Q7Z650
Cytosolic 10-formyltetrahydrofolate dehydrogenaseALDH1L1O75891
Mitochondrial 10-formyltetrahydrofolate dehydrogenaseALDH1L2Q3SY69
Dihydrofolate reductaseDHFRP00374
Gamma-glutamyl hydrolaseGGHQ92820
Methionyl-tRNA formyltransferase, mitochondrialMTFMTQ96DP5
Ammonia RecyclingSMP00009 map00910
Betaine MetabolismSMP00123 map00260
Folate MetabolismSMP00053 map00670
Glycine and Serine MetabolismSMP00004 map00260
Histidine MetabolismSMP00044 map00340
Methionine MetabolismSMP00033 map00270
Pterine BiosynthesisSMP00005 map00790
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference