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Record Information
Version4.0
StatusExpected but not Quantified
Creation Date2009-04-06 16:20:44 UTC
Update Date2017-12-07 02:36:07 UTC
HMDB IDHMDB0012190
Secondary Accession Numbers
  • HMDB12190
Metabolite Identification
Common NameArsenate
DescriptionThe arsenate ion is AsO43−. An arsenate (compound) is any compound that contains this ion.The arsenic atom in arsenate has a valency of 5 and is also known as pentavalent arsenic or As[V].Arsenate resembles phosphate in many respects, since arsenic and phosphorus occur in the same group (column) of the periodic table. In acidic conditions arsenate exists as arsenic acid, H3AsO4;in weakly acid conditions it exists as dihydrogen arsenate ion, H2AsO4−; in weakly basic conditions it exists as hydrogen arsenate ion HAsO42−; and finally, in basic conditions, it exists as the arsenate ion AsO43−. Arsenate can replace inorganic phosphate in the step of glycolysis that produces 1,3-bisphosphoglycerate, yielding 1-arseno-3-phosphoglycerate instead. This molecule is unstable and quickly hydrolyzes, forming the next intermediate in the pathway, 3-phosphoglycerate. Therefore glycolysis proceeds, but the ATP molecule that would be generated from 1,3-bisphosphoglycerate is lost - arsenate is an uncoupler of glycolysis, explaining its toxicity.[1]. Some species of bacteria obtain their energy by oxidizing various fuels while reducing arsenates to form arsenites. The enzymes involved are known as arsenate reductases. In 2008, bacteria were discovered that employ a version of photosynthesis with arsenites as electron donors, producing arsenates (just like ordinary photosynthesis uses water as electron donor, producing molecular oxygen). The researchers conjectured that historically these photosynthesizing organisms produced the arsenates that allowed the arsenate-reducing bacteria to thrive. (Wikipedia).
Structure
Thumb
Synonyms
ValueSource
[aso(OH)3]ChEBI
Arsoric acidChEBI
H3AsO4ChEBI
Orthoarsenic acidChEBI
Arsenic acidGenerator
ArsateGenerator
Arsic acidGenerator
OrthoarsenateGenerator
Arsenate ionHMDB
Arsenate ionsHMDB
Arsenate(3-)HMDB
ArsorateHMDB
ARTHMDB
Tetraoxidoarsenate(3-)HMDB
Tetraoxoarsenate(3-)HMDB
Tetraoxoarsenate(V)HMDB
Metaarsenic acidMeSH
Orthoarsenic acid, dihydrateMeSH
Pyroarsenic acidMeSH
Chemical FormulaAsH3O4
Average Molecular Weight141.943
Monoisotopic Molecular Weight141.924730001
IUPAC Namearsoric acid
Traditional Namearsenic acid
CAS Registry Number15584-04-0
SMILES
O[As](O)(O)=O
InChI Identifier
InChI=1S/AsH3O4/c2-1(3,4)5/h(H3,2,3,4,5)
InChI KeyDJHGAFSJWGLOIV-UHFFFAOYSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of inorganic compounds known as miscellaneous arsenates. These are inorganic compounds in which the largest metallic oxoanion is arsenate, to which either no atom or a non metal atom is bonded.
KingdomInorganic compounds
Super ClassMixed metal/non-metal compounds
ClassMiscellaneous mixed metal/non-metals
Sub ClassMiscellaneous metallic oxoanionic compounds
Direct ParentMiscellaneous arsenates
Alternative Parents
Substituents
  • Arsenate
  • Inorganic oxide
  • Inorganic salt
  • Inorganic metalloid salt
  • Inorganic arsenic compound
Molecular FrameworkNot Available
External Descriptors
Ontology
Physiological effect

Health effect:

Disposition

Route of exposure:

Source:

Role

Environmental role:

Indirect biological role:

Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP-1.2ChemAxon
pKa (Strongest Acidic)3.15ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area77.76 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity9.14 m³·mol⁻¹ChemAxon
Polarizability7.07 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-00dl-0900000000-0bf57018ef75d93c7ef9View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0006-0900000000-5ca961b72dc240c15e90View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0006-0900000000-9f9d45f54cae7c18d6d6View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-1900000000-4e2cd225d3f37d0bf140View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0006-0900000000-4dea009911cb3f4371c9View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0006-1900000000-9bc9e4e3396a1ba0f3e4View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-0900000000-5fa1856d78a4a52febc9View in MoNA
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
FoodDB IDFDB028842
KNApSAcK IDNot Available
Chemspider ID229
KEGG Compound IDC01478
BioCyc IDARSENATE
BiGG IDNot Available
Wikipedia LinkArsenate
METLIN IDNot Available
PubChem Compound234
PDB IDNot Available
ChEBI ID18231
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available