Record Information
Creation date2010-04-08 22:10:40 UTC
Update date2018-05-29 01:04:41 UTC
Primary IDFDB013365
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameSodium phosphate (Na(H2PO4))
DescriptionSodium phosphate, monobasic, also known as monosodium phosphate or NAH2PO4, belongs to the class of inorganic compounds known as alkali metal phosphates. These are inorganic compounds in which the largest oxoanion is phosphate, and in which the heaviest atom not in an oxoanion is an alkali metal. Sodium phosphate, monobasic is a moderately acidic compound (based on its pKa). Sodium phosphate, monobasic is an odorless tasting compound.
CAS Number7558-80-7
Monosodium phosphateChEBI
Phosphoric acid, monosodium saltChEBI
Sodium dihydrogen phosphateChEBI
Sodium phosphate monobasic anhydrousChEBI
Anhydrous monobasic sodium phosphateKegg
Monosodium phosphoric acidGenerator
Phosphate, monosodium saltGenerator
Sodium dihydrogen phosphoric acidGenerator
Sodium phosphoric acid monobasic anhydrousGenerator
Anhydrous monobasic sodium phosphoric acidGenerator
Sodium phosphoric acid, monobasicGenerator
Sodium phosphate, monobasicChEBI
Sodium phosphoric acid (na(H2PO4))Generator
Monobasic sodium phosphatebiospider
Monosodium dihydrogen phosphatebiospider
Monosodium hydrogen phosphatebiospider
Monosodium monophosphatebiospider
Monosodium phosphate, 9CI, 8CIdb_source
Phosphoric acid, sodium saltbiospider
Sodium acid phosphatebiospider
Sodium dihydrogen monophosphatebiospider
Sodium phosphate (NaH2PO4)biospider
Sodium phosphate monobasic, USANdb_source
Predicted Properties
pKa (Strongest Acidic)1.8ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area80.59 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity13.53 m³·mol⁻¹ChemAxon
Polarizability5.53 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaH2NaO4P
IUPAC namesodium dihydrogen phosphate
InChI IdentifierInChI=1S/Na.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
Isomeric SMILES[Na+].OP(O)([O-])=O
Average Molecular Weight119.977
Monoisotopic Molecular Weight119.958839739
Description belongs to the class of inorganic compounds known as alkali metal phosphates. These are inorganic compounds in which the largest oxoanion is phosphate, and in which the heaviest atom not in an oxoanion is an alkali metal.
KingdomInorganic compounds
Super ClassMixed metal/non-metal compounds
ClassAlkali metal oxoanionic compounds
Sub ClassAlkali metal phosphates
Direct ParentAlkali metal phosphates
Alternative Parents
  • Alkali metal phosphate
  • Inorganic sodium salt
  • Inorganic oxide
  • Inorganic salt
Molecular FrameworkNot Available
External Descriptors
OntologyNo ontology term
Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
Physical stateNot Available
Physical DescriptionNot Available
Mass CompositionH 1.68%; Na 19.16%; O 53.34%; P 25.82%DFC
Melting Point60 oC
Boiling PointNot Available
Experimental Water Solubility487 mg/mL at 25 oCSCHNELLBACH,W & ROSIN,J (1931)
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
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-014i-2900000000-bb8469bf6f114d34339aJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-4900000000-bab66d5ac1c7568d95faJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00e9-5900000000-cbf85bf10186a2eb87ffJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-001i-9100000000-8f5a2a50f31d07b9eb29JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-00or-9700000000-827cc1ea4d7fa068aa43JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-9000000000-8e75f3fe6cbb103be529JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-9000000000-04c1d51660b1dbfb8951JSpectraViewer
ChemSpider IDNot Available
ChEMBL IDNot Available
KEGG Compound IDNot Available
Pubchem Compound ID23672064
Pubchem Substance IDNot Available
ChEBI ID37585
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDNot Available
CRC / DFC (Dictionary of Food Compounds) IDHTN10-P:HTN10-P
Dr. Duke IDNot Available
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDrw1283711
SuperScent IDNot Available
Wikipedia IDMonosodium_phosphate
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
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <> Accessed 15.10.23.
MSDSNot Available
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference