Record Information
Version1.0
Creation date2010-04-08 22:05:50 UTC
Update date2024-11-29 22:28:12 UTC
Primary IDFDB003521
Secondary Accession Numbers
  • FDB030949
Chemical Information
FooDB NamePotassium
DescriptionPotassium, also known as K+ or potassium ion, belongs to the class of inorganic compounds known as homogeneous alkali metal compounds. These are inorganic compounds containing only metal atoms,with the largest atom being a alkali metal atom. Potassium is a weakly acidic compound (based on its pKa). Potassium exists in all living species, ranging from bacteria to humans. In humans, potassium is involved in the metabolic disorder called the phenytoin (antiarrhythmic) action pathway. Outside of the human body, Potassium is found, on average, in the highest concentration within a few different foods, such as kombus, milk (cow), and garden tomato (var.) and in a lower concentration in yogurts, strawberries, and zwiebacks. Potassium has also been detected, but not quantified in, several different foods, such as sourdocks, half-highbush blueberries, wax apples, jostaberries, and medlars. This could make potassium a potential biomarker for the consumption of these foods. Potassium is a potentially toxic compound.
CAS Number7440-09-7
Structure
Thumb
Synonyms
SynonymSource
K(+)ChEBI
K+ChEBI
POTASSIUM ionChEBI
Potassium(1+)Kegg
Nabumeton aKegg
KaliumHMDB
Potassium (ion)HMDB
Potassium (k+)HMDB
Potassium cationHMDB
Potassium ion (k+)HMDB
Potassium ion (K1+)HMDB
Potassium ion(+)HMDB
Potassium ion(1+)HMDB
Potassium monocationHMDB
Potassium(+)HMDB
Potassium(1+) ionHMDB
Potassium(I) cationHMDB
Liver regeneration factor 1HMDB
LRF-1HMDB
LRF1 Transcription factorHMDB
Potassium ionmanual
Potassium ion (k1+)HMDB
Predicted Properties
PropertyValueSource
logP0.2ChemAxon
pKa (Strongest Acidic)3.09ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity0 m³·mol⁻¹ChemAxon
Polarizability1.78 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaK
IUPAC namepotassium(1+) ion
InChI IdentifierInChI=1S/K/q+1
InChI KeyNPYPAHLBTDXSSS-UHFFFAOYSA-N
Isomeric SMILES[K+]
Average Molecular Weight39.0983
Monoisotopic Molecular Weight38.963706861
Classification
Description Belongs to the class of inorganic compounds known as homogeneous alkali metal compounds. These are inorganic compounds containing only metal atoms,with the largest atom being a alkali metal atom.
KingdomInorganic compounds
Super ClassHomogeneous metal compounds
ClassHomogeneous alkali metal compounds
Sub ClassNot Available
Direct ParentHomogeneous alkali metal compounds
Alternative ParentsNot Available
Substituents
  • Homogeneous alkali metal
Molecular FrameworkNot Available
External Descriptors
Ontology
Disposition

Route of exposure:

Source:

Biological location:

Role

Biological role:

Physico-Chemical Properties
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateSolid
Physical DescriptionNot Available
Mass CompositionNot Available
Melting Point63.2 oC
Boiling PointNot Available
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
Charge+1
Optical RotationNot Available
Spectroscopic UV DataNot Available
DensityNot Available
Refractive IndexNot Available
Spectra
Spectra
EI-MS/GC-MSNot Available
MS/MS
TypeDescriptionSplash KeyView
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-9000000000-560fc6f738e9570ec8a22015-09-15View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000i-9000000000-560fc6f738e9570ec8a22015-09-15View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-000i-9000000000-560fc6f738e9570ec8a22015-09-15View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-9000000000-bcbe5ea7d5d32f6a95982015-09-15View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-9000000000-bcbe5ea7d5d32f6a95982015-09-15View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-000i-9000000000-bcbe5ea7d5d32f6a95982015-09-15View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-9000000000-e11fed6c31524d9e4d2c2021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000i-9000000000-e11fed6c31524d9e4d2c2021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-000i-9000000000-e11fed6c31524d9e4d2c2021-09-22View Spectrum
NMRNot Available
ChemSpider ID791
ChEMBL IDNot Available
KEGG Compound IDC00238
Pubchem Compound ID813
Pubchem Substance IDNot Available
ChEBI ID29103
Phenol-Explorer IDNot Available
DrugBank IDDB01345
HMDB IDHMDB00586
CRC / DFC (Dictionary of Food Compounds) IDNot Available
EAFUS IDNot Available
Dr. Duke IDPOTASSIUM
BIGG ID34349
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDPotassium
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
FoodReference
Biological Effects and Interactions
Health Effects / Bioactivities
DescriptorIDDefinitionReference
Angiotensin receptor blocker61016 An agent that blocks angiotensin II receptors, reducing blood pressure and fluid retention. Therapeutically, it's used to manage hypertension, heart failure, and kidney disease, protecting against cardiovascular damage and slowing disease progression.DUKE
Anti-arrhythmic38070 An agent that regulates heart rhythm, correcting irregular heartbeat patterns. Therapeutically, it restores normal cardiac function, commonly used to manage arrhythmias, prevent sudden cardiac death, and treat conditions like atrial fibrillation and ventricular tachycardia.DUKE
Anti depressant52217 An agent that regulates mood, reducing symptoms of depression and anxiety by altering neurotransmitter levels in the brain, commonly used in managing depression, anxiety disorders, and other mood disorders.DUKE
Anti-fatigue52217 An agent that reduces physical and mental exhaustion, enhancing endurance and vitality. It plays a biological role in regulating energy metabolism and mitigating oxidative stress. Therapeutically, anti-fatigue agents are used to manage chronic fatigue syndrome, improve athletic performance, and alleviate symptoms of anemia and other debilitating conditions.DUKE
Anti hypertensive52217 An agent that lowers blood pressure, reducing the risk of cardiovascular disease. It plays a biological role in relaxing blood vessels, decreasing cardiac workload, and improving blood flow. Therapeutically, it's used to manage hypertension, heart failure, and stroke, with key medical applications in preventing organ damage and improving overall cardiovascular health.DUKE
Anti-spasmodic52217 An agent that relaxes smooth muscle, reducing muscle spasms and cramps. It plays a biological role in regulating muscle tone and is therapeutically applied to treat conditions such as irritable bowel syndrome, menstrual cramps, and muscle spasms, providing relief from abdominal pain and discomfort.DUKE
Anti-stroke52217 An agent that prevents or reduces the severity of stroke, typically by inhibiting blood clot formation or improving cerebral blood flow, commonly used in managing cardiovascular diseases, preventing stroke recurrence, and reducing stroke-related brain damage.DUKE
Anxiolytic35474 An agent that reduces anxiety symptoms, commonly used in managing anxiety disorders, such as generalized anxiety disorder and panic disorder, by modulating neurotransmitters like GABA, promoting relaxation and calming effects.DUKE
Beta-blockerAn agent that blocks the effects of epinephrine (adrenaline), lowering blood pressure and heart rate. Therapeutically, it reduces cardiovascular stress, commonly used to manage hypertension, angina, heart failure, and certain arrhythmias.DUKE
Cardioprotective38070 An agent that protects the heart from damage, reducing the risk of cardiovascular disease. It plays a biological role in mitigating cardiac stress and injury, with therapeutic applications in preventing heart attacks, strokes, and arrhythmias, and key medical uses in treating hypertension, heart failure, and coronary artery disease.DUKE
Cardiotoxic50912 An agent that damages or impairs heart function, often used to describe chemotherapy agents or drugs with adverse cardiac effects. Its biological role involves disrupting cardiac cell function, and while it has limited therapeutic applications, it is sometimes used in cancer treatment. Key medical uses include oncology, where the toxic effects are harnessed to target rapidly dividing cancer cells.DUKE
Diuretic35498 An agent that increases urine production, helping remove excess fluids and salts from the body. It plays a key biological role in regulating fluid balance and blood pressure. Therapeutically, diuretics are used to treat conditions such as hypertension, edema, and heart failure, helping reduce swelling and lower blood pressure.DUKE
HypotensiveAn agent that lowers blood pressure, playing a biological role in regulating cardiovascular function. Therapeutically, it's used to manage hypertension, heart failure, and angina, with key medical applications in preventing stroke, kidney disease, and cardiac complications.DUKE
Vasodilator35620 An agent that widens blood vessels, reducing blood pressure and increasing blood flow. It plays a biological role in regulating cardiovascular function. Therapeutically, vasodilators are used to treat conditions such as hypertension, angina, and heart failure, improving oxygen delivery and reducing cardiac workload.DUKE
Enzymes
NameGene NameUniProt ID
Sodium/potassium-transporting ATPase subunit beta-3ATP1B3P54709
Sodium/potassium-transporting ATPase subunit beta-2ATP1B2P14415
Potassium-transporting ATPase alpha chain 2ATP12AP54707
Potassium-transporting ATPase subunit betaATP4BP51164
Potassium-transporting ATPase alpha chain 1ATP4AP20648
Pathways
NameSMPDB LinkKEGG Link
Lactose DegradationSMP00457 Not Available
Trehalose DegradationSMP00467 Not Available
Metabolism and Physiological Effects of Homocysteine SMP0123280 Not Available
Metabolism and Physiological Effects of S-AdenosylhomocysteineSMP0127690 Not Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
Files
MSDSshow
References
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference— Saxholt, E., et al. 'Danish food composition databank, revision 7.' Department of Nutrition, National Food Institute, Technical University of Denmark (2008).
— U.S. Department of Agriculture, Agricultural Research Service. 2008. USDA National Nutrient Database for Standard Reference, Release 21. Nutrient Data Laboratory Home Page.
— Duke, James. 'Dr. Duke's Phytochemical and Ethnobotanical Databases. United States Department of Agriculture.' Agricultural Research Service, Accessed April 27 (2004).