You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Human Metabolome Database.
Record Information
Version4.0
StatusDetected and Quantified
Creation Date2006-05-22 14:17:38 UTC
Update Date2017-12-20 20:33:04 UTC
HMDB IDHMDB0002142
Secondary Accession Numbers
  • HMDB02142
Metabolite Identification
Common NamePhosphoric acid
DescriptionPhosphoric acid, also known as orthophosphoric acid or phosphoric(V) acid, is a mineral acid with the chemical formula H3PO4. Alternatively, orthophosphoric acid molecules can combine with themselves to form a variety of compounds referred to as phosphoric acids in a more general way. For a discussion of these, see Phosphoric acids and Phosphates. Appears to exist only as a food additive and produced synthetically. --Wikipedia.
Structure
Thumb
Synonyms
ValueSource
[po(OH)3]ChEBI
Acide phosphoriqueChEBI
Acidum phosphoricumChEBI
H3PO4ChEBI
Orthophosphoric acidChEBI
PhosphateChEBI
PhosphorsaeureloesungenChEBI
PhosphorsaeureChEBI
OrthophosphateGenerator
Diphosphate tetrasodiumHMDB
MarphosHMDB
NFBHMDB
ortho- Phosphoric acidHMDB
Phosphoric acid (acd/name 4.0)HMDB
Sodium pyrophosphateHMDB
Sodium pyrophosphate decahydrateHMDB
Sodium pyrophosphate decahydrate biochemicaHMDB
SonacHMDB
Tetra-sodium pyrophosphateHMDB
Tetrasodium pyrophosphate 10-hydrateHMDB
Tetrasodium pyrophosphate decahydrateHMDB
White phosphoric acidHMDB
K-EtchantMeSH
Uni-etchMeSH
Concise etchantMeSH
Chemical FormulaH3O4P
Average Molecular Weight97.9952
Monoisotopic Molecular Weight97.976895096
IUPAC Namephosphoric acid
Traditional Namephosphoric acid
CAS Registry Number7664-38-2
SMILES
OP(O)(O)=O
InChI Identifier
InChI=1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)
InChI KeyNBIIXXVUZAFLBC-UHFFFAOYSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of chemical entities known as non-metal phosphates. These are inorganic non-metallic compounds containing a phosphate as its largest oxoanion.
KingdomChemical entities
Super ClassInorganic compounds
ClassHomogeneous non-metal compounds
Sub ClassNon-metal oxoanionic compounds
Direct ParentNon-metal phosphates
Alternative Parents
Substituents
  • Non-metal phosphate
  • Inorganic oxide
Molecular FrameworkNot Available
External Descriptors
Ontology
Disposition

Biological Location:

  Subcellular:

  Biofluid and excreta:

Source:

Process

Naturally occurring process:

  Biological process:

    Biochemical pathway:

Role

Industrial application:

  Pharmaceutical industry:

Indirect biological role:

Biological role:

  Molecular messenger:

Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point42.35 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogP-1.436Not Available
Predicted Properties
PropertyValueSource
logP-1ChemAxon
pKa (Strongest Acidic)1.8ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area77.76 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity14.65 m³·mol⁻¹ChemAxon
Polarizability5.81 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - GC-MS (3 TMS)splash10-0002-0794000000-6c866e626b9356994d46View in MoNA
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0002-0394000000-3a469377821d88bd699fView in MoNA
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-0002-0794000000-6c866e626b9356994d46View in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-000t-0972000000-2ddd7182426dbace5342View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0002-9000000000-1805c2208b5ff15a75b1View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, N/A (Annotated)splash10-000t-9000000000-0e85f764ac98e8949759View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, N/A (Annotated)splash10-001i-9000000000-869a362083996a0cec77View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, N/A (Annotated)splash10-03di-9000000000-801101cccfd6c25271d4View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0002-9000000000-12a5e23d24cd494e99c1View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0002-9000000000-91e06ca38117aabdb14cView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-000t-9000000000-19b1c041aa5e2adcc3e6View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-9000000000-e56eecd6724dfbf74160View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-9000000000-0a46ba32971030356ac5View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-9000000000-3a53d27e23b39429d092View in MoNA
Biological Properties
Cellular Locations
  • Cytoplasm (predicted from logP)
Biofluid Locations
  • Blood
  • Feces
  • Urine
Tissue LocationNot Available
Pathways
NameSMPDB/PathwhizKEGG
2-Hydroxyglutric Aciduria (D And L Form)Pw000212Pw000212 greyscalePw000212 simpleNot Available
4-Hydroxybutyric Aciduria/Succinic Semialdehyde Dehydrogenase DeficiencyPw000070Pw000070 greyscalePw000070 simpleNot Available
5-OxoprolinuriaPw000074Pw000074 greyscalePw000074 simpleNot Available
5-oxoprolinase deficiencyPw000476Pw000476 greyscalePw000476 simpleNot Available
AICA-RibosiduriaPw000082Pw000082 greyscalePw000082 simpleNot Available
Normal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified820.4 uMAdult (>18 years old)BothNormal details
BloodDetected and Quantified1100.0 (810.0-1450.0) uMAdult (>18 years old)BothNormal
    • Geigy Scientific ...
details
FecesDetected but not Quantified Not SpecifiedNot Specified
Normal
details
FecesDetected but not Quantified Infant (0-1 year old)Both
Normal
details
FecesDetected but not Quantified Not SpecifiedNot Specified
Normal
details
UrineDetected and Quantified784 (425-1170) umol/mmol creatinineAdult (>18 years old)Both
Normal
details
UrineDetected and Quantified1000-4900 umol/mmol creatinineAdult (>18 years old)BothNormal
    • Great Plains Labo...
details
Abnormal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
FecesDetected but not Quantified Not SpecifiedNot Specified
Cryptosporidium infection
details
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB013380
KNApSAcK IDC00007408
Chemspider ID979
KEGG Compound IDC00009
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkPhosphoric_Acid
METLIN IDNot Available
PubChem Compound1004
PDB IDNot Available
ChEBI ID26078
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Faiman C, Moorhouse JA: Diurnal variation in the levels of glucose and related substances in healthy and diabetic subjects during starvation. Clin Sci. 1967 Feb;32(1):111-26. [PubMed:5336272 ]

Only showing the first 10 proteins. There are 686 proteins in total.

Enzymes

General function:
Involved in hydrolase activity
Specific function:
Hydrolyzes extracellular nucleotides into membrane permeable nucleosides.
Gene Name:
NT5E
Uniprot ID:
P21589
Molecular weight:
57948.125
Reactions
A 5'-ribonucleotide + Water → a ribonucleoside + Phosphoric aciddetails
Adenosine monophosphate + Water → Adenosine + Phosphoric aciddetails
Cytidine monophosphate + Water → Cytidine + Phosphoric aciddetails
Uridine 5'-monophosphate + Water → Uridine + Phosphoric aciddetails
Inosinic acid + Water → Inosine + Phosphoric aciddetails
Guanosine monophosphate + Water → Guanosine + Phosphoric aciddetails
5-Thymidylic acid + Water → Thymidine + Phosphoric aciddetails
dCMP + Water → Deoxycytidine + Phosphoric aciddetails
2'-Deoxyguanosine 5'-monophosphate + Water → Deoxyguanosine + Phosphoric aciddetails
Deoxyadenosine monophosphate + Water → Deoxyadenosine + Phosphoric aciddetails
beta-nicotinamide D-ribonucleotide + Water → Nicotinamide riboside + Phosphoric aciddetails
Xanthylic acid + Water → Xanthosine + Phosphoric aciddetails
nicotinate beta-D-ribonucleotide + Water → Nicotinate D-ribonucleoside + Phosphoric aciddetails
General function:
Involved in nucleotide binding
Specific function:
Dephosphorylates the 5' and 2'(3')-phosphates of deoxyribonucleotides. Helps to regulate adenosine levels (By similarity).
Gene Name:
NT5C1B
Uniprot ID:
Q96P26
Molecular weight:
68803.055
Reactions
A 5'-ribonucleotide + Water → a ribonucleoside + Phosphoric aciddetails
Adenosine monophosphate + Water → Adenosine + Phosphoric aciddetails
Cytidine monophosphate + Water → Cytidine + Phosphoric aciddetails
Uridine 5'-monophosphate + Water → Uridine + Phosphoric aciddetails
Inosinic acid + Water → Inosine + Phosphoric aciddetails
Guanosine monophosphate + Water → Guanosine + Phosphoric aciddetails
5-Thymidylic acid + Water → Thymidine + Phosphoric aciddetails
dCMP + Water → Deoxycytidine + Phosphoric aciddetails
2'-Deoxyguanosine 5'-monophosphate + Water → Deoxyguanosine + Phosphoric aciddetails
Deoxyadenosine monophosphate + Water → Deoxyadenosine + Phosphoric aciddetails
beta-nicotinamide D-ribonucleotide + Water → Nicotinamide riboside + Phosphoric aciddetails
Xanthylic acid + Water → Xanthosine + Phosphoric aciddetails
nicotinate beta-D-ribonucleotide + Water → Nicotinate D-ribonucleoside + Phosphoric aciddetails
General function:
Involved in nucleotide binding
Specific function:
Dephosphorylates the 5' and 2'(3')-phosphates of deoxyribonucleotides and has a broad substrate specificity. Helps to regulate adenosine levels in heart during ischemia and hypoxia.
Gene Name:
NT5C1A
Uniprot ID:
Q9BXI3
Molecular weight:
41020.145
Reactions
A 5'-ribonucleotide + Water → a ribonucleoside + Phosphoric aciddetails
Adenosine monophosphate + Water → Adenosine + Phosphoric aciddetails
Cytidine monophosphate + Water → Cytidine + Phosphoric aciddetails
Uridine 5'-monophosphate + Water → Uridine + Phosphoric aciddetails
Inosinic acid + Water → Inosine + Phosphoric aciddetails
Guanosine monophosphate + Water → Guanosine + Phosphoric aciddetails
5-Thymidylic acid + Water → Thymidine + Phosphoric aciddetails
dCMP + Water → Deoxycytidine + Phosphoric aciddetails
2'-Deoxyguanosine 5'-monophosphate + Water → Deoxyguanosine + Phosphoric aciddetails
Deoxyadenosine monophosphate + Water → Deoxyadenosine + Phosphoric aciddetails
beta-nicotinamide D-ribonucleotide + Water → Nicotinamide riboside + Phosphoric aciddetails
Xanthylic acid + Water → Xanthosine + Phosphoric aciddetails
nicotinate beta-D-ribonucleotide + Water → Nicotinate D-ribonucleoside + Phosphoric aciddetails
General function:
Involved in metal ion binding
Specific function:
Dephosphorylates the 5' and 2'(3')-phosphates of deoxyribonucleotides, with a preference for dUMP and dTMP, intermediate activity towards dGMP, and low activity towards dCMP and dAMP.
Gene Name:
NT5C
Uniprot ID:
Q8TCD5
Molecular weight:
Not Available
Reactions
Adenosine monophosphate + Water → Adenosine + Phosphoric aciddetails
Cytidine monophosphate + Water → Cytidine + Phosphoric aciddetails
Uridine 5'-monophosphate + Water → Uridine + Phosphoric aciddetails
Inosinic acid + Water → Inosine + Phosphoric aciddetails
Guanosine monophosphate + Water → Guanosine + Phosphoric aciddetails
5-Thymidylic acid + Water → Thymidine + Phosphoric aciddetails
dCMP + Water → Deoxycytidine + Phosphoric aciddetails
2'-Deoxyguanosine 5'-monophosphate + Water → Deoxyguanosine + Phosphoric aciddetails
Deoxyadenosine monophosphate + Water → Deoxyadenosine + Phosphoric aciddetails
beta-nicotinamide D-ribonucleotide + Water → Nicotinamide riboside + Phosphoric aciddetails
Xanthylic acid + Water → Xanthosine + Phosphoric aciddetails
nicotinate beta-D-ribonucleotide + Water → Nicotinate D-ribonucleoside + Phosphoric aciddetails
General function:
Involved in phosphatase activity
Specific function:
Dephosphorylates specifically the 5' and 2'(3')-phosphates of uracil and thymine deoxyribonucleotides, and so protects mitochondrial DNA replication from excess dTTP. Has only marginal activity towards dIMP and dGMP.
Gene Name:
NT5M
Uniprot ID:
Q9NPB1
Molecular weight:
Not Available
Reactions
Adenosine monophosphate + Water → Adenosine + Phosphoric aciddetails
Cytidine monophosphate + Water → Cytidine + Phosphoric aciddetails
Uridine 5'-monophosphate + Water → Uridine + Phosphoric aciddetails
Inosinic acid + Water → Inosine + Phosphoric aciddetails
Guanosine monophosphate + Water → Guanosine + Phosphoric aciddetails
5-Thymidylic acid + Water → Thymidine + Phosphoric aciddetails
dCMP + Water → Deoxycytidine + Phosphoric aciddetails
2'-Deoxyguanosine 5'-monophosphate + Water → Deoxyguanosine + Phosphoric aciddetails
Deoxyadenosine monophosphate + Water → Deoxyadenosine + Phosphoric aciddetails
beta-nicotinamide D-ribonucleotide + Water → Nicotinamide riboside + Phosphoric aciddetails
Xanthylic acid + Water → Xanthosine + Phosphoric aciddetails
nicotinate beta-D-ribonucleotide + Water → Nicotinate D-ribonucleoside + Phosphoric aciddetails
General function:
Involved in ATP citrate synthase activity
Specific function:
ATP citrate-lyase is the primary enzyme responsible for the synthesis of cytosolic acetyl-CoA in many tissues. Has a central role in de novo lipid synthesis. In nervous tissue it may be involved in the biosynthesis of acetylcholine.
Gene Name:
ACLY
Uniprot ID:
P53396
Molecular weight:
120838.27
Reactions
ADP + Phosphoric acid + Acetyl-CoA + Oxalacetic acid → Adenosine triphosphate + Citric acid + Coenzyme Adetails
Adenosine triphosphate + Citric acid + Coenzyme A → ADP + Phosphoric acid + Acetyl-CoA + Oxalacetic aciddetails
General function:
Involved in acetyl-CoA carboxylase activity
Specific function:
ACC-beta may be involved in the provision of malonyl-CoA or in the regulation of fatty acid oxidation, rather than fatty acid biosynthesis. Carries out three functions: biotin carboxyl carrier protein, biotin carboxylase and carboxyltransferase.
Gene Name:
ACACB
Uniprot ID:
O00763
Molecular weight:
276538.575
Reactions
Adenosine triphosphate + Acetyl-CoA + Carbonic acid → ADP + Phosphoric acid + Malonyl-CoAdetails
Adenosine triphosphate + biotin-[carboxyl-carrier-protein] + CO(2) → ADP + Phosphoric acid + carboxy-biotin-[carboxyl-carrier-protein]details
Adenosine triphosphate + Holo-[carboxylase] + Carbonic acid → ADP + Phosphoric acid + Carboxybiotin-carboxyl-carrier proteindetails
General function:
Involved in catalytic activity
Specific function:
Pyruvate carboxylase catalyzes a 2-step reaction, involving the ATP-dependent carboxylation of the covalently attached biotin in the first step and the transfer of the carboxyl group to pyruvate in the second. Catalyzes in a tissue specific manner, the initial reactions of glucose (liver, kidney) and lipid (adipose tissue, liver, brain) synthesis from pyruvate.
Gene Name:
PC
Uniprot ID:
P11498
Molecular weight:
129632.565
Reactions
Adenosine triphosphate + Pyruvic acid + Carbonic acid → ADP + Phosphoric acid + Oxalacetic aciddetails
General function:
Involved in acetate-CoA ligase activity
Specific function:
Important for maintaining normal body temperature during fasting and for energy homeostasis. Essential for energy expenditure under ketogenic conditions (By similarity). Converts acetate to acetyl-CoA so that it can be used for oxidation through the tricarboxylic cycle to produce ATP and CO(2).
Gene Name:
ACSS1
Uniprot ID:
Q9NUB1
Molecular weight:
74625.88
General function:
Involved in acetyl-CoA carboxylase activity
Specific function:
Catalyzes the rate-limiting reaction in the biogenesis of long-chain fatty acids. Carries out three functions: biotin carboxyl carrier protein, biotin carboxylase and carboxyltransferase.
Gene Name:
ACACA
Uniprot ID:
Q13085
Molecular weight:
269997.01
Reactions
Adenosine triphosphate + Acetyl-CoA + Carbonic acid → ADP + Phosphoric acid + Malonyl-CoAdetails
Adenosine triphosphate + biotin-[carboxyl-carrier-protein] + CO(2) → ADP + Phosphoric acid + carboxy-biotin-[carboxyl-carrier-protein]details
Adenosine triphosphate + Holo-[carboxylase] + Carbonic acid → ADP + Phosphoric acid + Carboxybiotin-carboxyl-carrier proteindetails

Only showing the first 10 proteins. There are 686 proteins in total.