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602892 Sigma-Aldrich

Oxygen-18O2

99 atom % 18O, 99% (CP)

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Properties

Related Categories Alphabetical Listings, Chemical Synthesis, Gases, Gases and Gas Mixtures, N-O,
Quality Level   200
vapor density   1.11 (vs air)
isotopic purity   99 atom % 18O
assay   99% (CP)
bp   −183 °C (lit.)
mp   −218 °C (lit.)
mass shift   M+4
SMILES string   [18O]=[18O]
InChI   1S/O2/c1-2/i1+2,2+2
InChI key   MYMOFIZGZYHOMD-XPULMUKRSA-N

Description

General description

Oxygen-18O2 is a naturally occurring stable isotope of oxygen. Natural abundance of 18O2 containing at least 99 atom % O-18.

Application

18O2 isotopic labelling was employed, in conjunction with time-of-flight secondary ion mass spectrometry, to characterize and elucidate the parts of the degradation mechanisms induced by molecular oxygen. Using 18O2 as a label, it is possible to study collagen degradation with this non-reutilized label and so avoid the large errors that are introduced by the recycling of other labels.

Packaging

500 mL in Sure-Pac™

Recommended products

Brass hose adapter Z146811 or brass body mini gas regulator Z513539 is recommended for 500 mL Sure/Pac cylinder (U.S only). For 1 L cylinder, either stainless steel control valve Z146951 or Z187224 is recommended.
PTFE sealing washers GCA inlet size 180 Z146994
PTFE sealing washers CGA inlet size 110 Z146986

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN1072 - class 2 - Oxygen, compressed
WGK Germany 
WGK 3
Protocols & Articles
Peer-Reviewed Papers
15

References

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