Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

View All Documentation

608572

Sigma-Aldrich

Deuterium oxide-18O

99 atom % D, 95 atom % 18O

Synonym(s):

Doubly Labeled Water, Heavy water-d2,18O, Unnormalized water-18O

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
D218O
CAS Number:
14674-67-0
Molecular Weight:
22.03
MDL number:
MFCD00145527
UNSPSC Code:
12352303
PubChem Substance ID:
329759253
NACRES:
NA.12

isotopic purity

95 atom % 18O
99 atom % D

Quality Level

200

bp

101.4 °C (lit.)

mp

3.8 °C (lit.)

density

1.216 g/mL at 25 °C

mass shift

M+4

SMILES string

[2H][18O][2H]

InChI

1S/H2O/h1H2/i1+2/hD2

InChI key

XLYOFNOQVPJJNP-LAPWFLRPSA-N

Looking for similar products? Visit Product Comparison Guide

Packaging

This product may be available from bulk stock and can be packaged on demand. For information on pricing, availability and packaging, please contact Stable Isotopes Customer Service.

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
EW2043
EW1971
EW1640
EW0215
CR1648

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Articles

Tools for Measuring Energy Expenditure

By first labeling molecular oxygen and then body water with 18O in a rat, Lifson measured the 18O abundance in expired CO2 and found the oxygens in CO2 exchanged with the oxygen in water. Indeed, these two oxygen containing species were in rapid isotopic equilibrium due to the actions of what we now know is carbonic anhydrase (Lifson, 1966)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service