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Bovine Rumen Metabolome Database

Showing metabocard for Rubidium (RMDB01327)

Legend: metabolite field enzyme field

Version 1.0
Creation Date 2006-08-16 14:16:24
Update Date 2009-01-05 14:23:42
Accession Number RMDB01327
Common Name Rubidium
Description Rubidium is a soft, silvery-white metallic element of the alkali metal group, present in traces amounts in human tissues and fluids. Rb-87, a naturally occurring isotope, is (slightly) radioactive. Rubidium is very soft and highly reactive, with properties similar to other elements in group 1, like rapid oxidation in air. Rubidium, particularly 87Rb, in the form of vapor, is one of the most commonly-used atomic species employed for laser cooling and Bose-Einstein condensation. Its desirable features for this application include the ready availability of inexpensive diode laser light at the relevant wavelength, and the moderate temperatures required to obtain substantial vapor pressures. Physiologically, it exists as an ion in the body. It has been found slightly increased in neoplastic human breast tissues obtained from patients at the time of mastectomy, compared to normal tissue. (PMID: 6488192, 15820728, 7324778, 9630429, 577330)
  1. Rubidium +
  2. Rubidium [UN1423]
Chemical IUPAC Name rubidium
Chemical Formula [Rb]+
Chemical Structure Structure
Chemical Taxonomy
  • Inorganic
Super Class
  • Inorganic compounds
  • Inorganic Ions and Gases
Sub Class
  • Metals
  • Mammalian_Metabolite
  • Osmolyte, enzyme cofactor, signalling
  • Exogenous
Average Molecular Weight 85.468
Monoisotopic Molecular Weight 84.911789
Isomeric SMILES [Rb+]
Canonical SMILES [Rb+]
KEGG Compound ID Not Available
BioCyc ID Not Available
BiGG ID Not Available
Wikipedia Link Rubidium Link Image
METLIN ID Not Available
PubChem Compound 5357696 Link Image
PubChem Substance 744728 Link Image
ChEBI ID 33322 Link Image
CAS Registry Number 7440-17-7
InChI Identifier InChI=1/Rb/q+1
Synthesis Reference Not Available
Melting Point (Experimental) 39 oC
Experimental Water Solubility Not Available Source: PhysProp
Predicted Water Solubility 81.3 mg/mL at 25 oC [MEYLAN,WM et al. (1996)] Calculated using ALOGPS
Physiological Charge 1
State Solid
Experimental LogP/Hydrophobicity Not Available Source: PhysProp
Predicted LogP/Hydrophobicity 0.23 [MEYLAN,WM & HOWARD,PH (1995)] Calculated using ALOGPS
Material Safety Data Sheet (MSDS) Not Available
MOL File Show Link Image
SDF File Show Link Image
PDB File Show Link Image
2D Structure
3D Structure
Experimental PDB ID Not Available
Experimental 1H NMR Spectrum Not Available
Experimental 13C NMR Spectrum Not Available
Experimental 13C HSQC Spectrum Not Available
Predicted 1H NMR Spectrum Not Available
Not Available
Predicted 13C NMR Spectrum Not Available
Not Available
Mass Spectrum Not Available
Simplified TOCSY Spectrum Not Available
BMRB Spectrum Not Available
Cellular Location Not Available
Biofluid Location
  • Rumen
Tissue Location Not Available
Concentrations (Normal)
Biofluid Rumen
Value 5.82 +/- 0.08 uM
Age N/A
Sex Female
Condition Normal
Breed Not Available
Experimental Condition Not Available
Comments Not Available
  • The rumen metabolome (in preparation)
Concentrations (Abnormal) Not Available
Pathway Names Not Available
HMDB Pathways Not Available
KEGG Pathways Not Available
SimCell Pathways Not Available
General References
  1. Wikipedia Link Image