Human Metabolome Database Version 3.5

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Showing metabocard for Rubidium (HMDB01327)

Blood
Urine

Record Information

Version

3.5

Creation Date

2006-08-16 07:16:24 -0600

Update Date

2013-02-08 11:20:50 -0700

HMDB ID

HMDB01327

Secondary Accession Numbers

None

Metabolite Identification

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 Link_out

, 15820728 Link_out

, 7324778

, 9630429

, 577330

Structure

Download: MOL | SDF | SMILES | InChI
Display: 2D Structure | 3D Structure

Synonyms

Rubidium [UN1423]
Rubidium +

Chemical Formula

Average Molecular Weight

85.4678

Monoisotopic Molecular Weight

84.911789341

IUPAC Name

rubidium(1+) ion

Traditional IUPAC Name

rubidium(1+)

CAS Registry Number

7440-17-7

SMILES

[Rb+]

InChI Identifier

InChI=1S/Rb/q+1

InChI Key

NCCSSGKUIKYAJD-UHFFFAOYSA-N

Chemical Taxonomy

Kingdom

Inorganic

Super Class

Inorganic compounds

Class

Inorganic Ions and Gases

Sub Class

Metals

Other Descriptors

None

Substituents

None

Direct Parent

Not Available

Ontology

Status

Detected and Quantified

Origin

Food

Biofunction

Osmolyte, enzyme cofactor, signalling

Application

Not Available

Cellular locations

Not Available

Physical Properties

State

Solid

Experimental Properties

Property	Value	Reference
Melting Point	39 °C	Not Available
Boiling Point	Not Available	Not Available
Water Solubility	Not Available	Not Available
LogP	Not Available	Not Available

Predicted Properties

Property	Value	Source
LogP	0	ChemAxon
Hydrogen Acceptor Count	0	ChemAxon
Hydrogen Donor Count	0	ChemAxon
Polar Surface Area	0 A²	ChemAxon
Rotatable Bond Count	0	ChemAxon
Refractivity	0	ChemAxon
Polarizability	1.78	ChemAxon
Formal Charge	1	ChemAxon
Physiological Charge	1	ChemAxon

Spectra

Not Available

Biological Properties

Cellular Locations

Not Available

Biofluid Locations

Blood
Cerebrospinal Fluid (CSF)
Urine

Tissue Location

Not Available

Pathways

Not Available

Normal Concentrations

Biofluid	Status	Value	Age	Sex	Condition	Comments
Blood	Expected and not Quantified	Not Applicable	Not Available	Not Available	Normal	Inferred from detection in urine
Cerebrospinal Fluid (CSF)	Detected and Quantified	0.499 +/- 0.097 uM	Adult (>18 years old)	Not Specified	Normal	Not Available
Urine	Detected and Quantified	1.354 (0.187-3.673) umol/mmol creatinine	Adult (>18 years old)	Both	Normal	by ICP MS
Urine	Detected and Quantified	1.84 +/- 0.46 umol/mmol creatinine	Adult (>18 years old)	Both	Normal	Not Available