ChemicalBook > CAS DataBase List > Water-18O

Water-18O

Product Name
Water-18O
CAS No.
14314-42-2
Chemical Name
Water-18O
Synonyms
O18-Water;WATER-18O;Water-1?O;(18O)Water;Water-18<;WATER(180,97%);18O, 97%]-water;[18O,99%]-Water;WATER (18O, 97%);WATER (18O, 10%)
CBNumber
CB7334306
Molecular Formula
H2O
Formula Weight
20.02
MOL File
14314-42-2.mol
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Water-18O Property

Melting point:
0 °C(lit.)
Boiling point:
100 °C(lit.)
Density 
1.11 g/mL at 20 °C(lit.)
refractive index 
n20D 1.33 (Predicted)
storage temp. 
Inert atmosphere,Room Temperature
form 
Colourless Liquid
color 
Colorless to light yellow
PH
6.0-8.0
Stability:
Hygroscopic
InChI
InChI=1S/H2O/h1H2/i1+2
InChIKey
XLYOFNOQVPJJNP-NJFSPNSNSA-N
SMILES
[18OH2]
CAS Number Unlabeled
7732-18-5
CAS Number Unlabeled
7732-18-5
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Safety

Safety Statements 
24/25
WGK Germany 
3
F 
21
HS Code 
28459000
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
902187
Product name
Water-18O
Purity
(for PET), ≥98 atom % 18O
Packaging
10G
Price
$3580
Updated
2025/07/31
Sigma-Aldrich
Product number
902187
Product name
Water-18O
Purity
(for PET), ≥98 atom % 18O
Packaging
20G
Price
$5710
Updated
2025/07/31
Sigma-Aldrich
Product number
902187
Product name
Water-18O
Purity
(for PET), ≥98 atom % 18O
Packaging
50G
Price
$11430
Updated
2025/07/31
Sigma-Aldrich
Product number
332089
Product name
Water-18O
Purity
Normalized with respect to hydrogen
Packaging
1g
Price
$160
Updated
2025/07/31
Sigma-Aldrich
Product number
329878
Product name
Water-18O
Purity
(for PET), 97 atom % 18O
Packaging
1g
Price
$385
Updated
2025/07/31
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Water-18O Chemical Properties,Usage,Production

Description

Only 0.2% of the oxygen-18O isotope exists in atmospheric oxygen. The Water-18O is manufactured by enriching the oxygen-18O over 98 atom% and is used to produce the [18F]FDG *1 PET diagnostic reagent for cancer. Water enriched in the oxygen-18 isotope (Water-18O) is widely used in medicine, agrochemistry and biochemistry. Oxygen-18 was first enriched to 99.5% in 1943 using thermal diffusion. To date, the use of electrolysis, chemical isotope exchange, gas diffusion, and rectification of oxygen, nitric oxide, and water has been described to enrich water with oxygen-18. Among them, the method of rectification of water, first demonstrated in 1944, is successfully used now in industry.

Chemical Properties

Colourless Liquid

Uses

Water-18O, 97 atom % 18O is used in DNA stable isotope probing (SIP) to investigate microbial growth and death in environmental samples.

Uses

Water-18O is an isotopically modified water, which is appropriate for PET applications.
It can also be used:

  • In paleoclimatology, hydrology, and plant ecology to determine soil stable oxygen isotope analysis of plant cellulose using δ18O.
  • To determine the diffusion of moisture into crystals using secondary ion mass spectrometry (SIMS).

Definition

ChEBI: ((18)O)water is a form of water consisting of two hydrogen atoms covalently bonded to an oxygen-18 atom. It is a water and an isotopically modified compound. It contains an oxygen-18 atom.

Water-18O Preparation Products And Raw materials

Raw materials

Preparation Products

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Water-18O Suppliers

China 143 Germany 1 Japan 1 Switzerland 1 United Kingdom 1 United States 14 Global 161
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View Lastest Price from Water-18O manufacturers

Hebei Jingbo New Material Technology Co., Ltd
Product
Heavy-oxygen water 14314-42-2
Price
US $0.00/g
Min. Order
1g
Purity
99%
Supply Ability
1000000
Release date
2023-12-13

14314-42-2, Water-18ORelated Search:

Oxygen DEUTERIUM OXIDE Sodium alkylbenzene sulfonate Pyridinium dichromate P-DIAZOBENZENESULFONIC ACID TSP Barite METHANOL-18O Oxygen-18O2 SODIUM ACETATE-18O2 L-Leucine-18O2 Urea-18O DEUTERIUM OXIDE-18O NITRIC-15N OXIDE-18O CARBON DIOXIDE (18O2) CARBON MONOXIDE (18O) CARBON MONOXIDE (13C; 18O) Heavy-oxygen water

  • <sup>18</sup>O Water
  • Water-(18-O) (10% Isotopic Purity)
  • 18O Labeled water
  • DEUTERIUM OXIDE-18O (UNNORMALIZED WATER-
  • WATER-18O, NORMALIZED, 99 ATOM % 18O
  • WATER-(18)O (NORMALIZED) VIAL WITH 1 G
  • WATER-18O, 97 ATOM % 18O
  • WATER-18O, NORMALIZED, CA. 10 ATOM % 18O
  • DEUTERIUM OXIDE-18O 99%D,75%
  • normalized95atom%18O
  • O18-Water
  • water-(18)o(normalized)
  • WATER-18O
  • Water-<sup>18</sup>O
  • Heavy-oxygen water
  • Water-18O [90 atom % 180]
  • (18O)Water
  • Water-18O, nomalized
  • oxygen-18 water Water-18O
  • Water-18O [90 atom % 18O]
  • WATER-(18)O (NORMALIZED), VIAL WITH 1 G, ~95 (ATOM % (18)O)
  • Water-<sup>18</sup>O, 97 atoM%<sup>18</sup>O
  • Oxygen-Heavy Water
  • Oxygen 18 water 98 atom%
  • Water-<sup>18</sup>O, 97%, 97 atom%<sup>18</sup>O
  • Oxygen 18 water 98 atom%14314-42-2
  • Water-<sup>18</sup>O, 90 atoM%<sup>18</sup>O
  • Water-O, 97%, 97 atom%O
  • [18O,1.5%]-Water (Normalized)
  • [18O,99%]-Water (Normalized)
  • WATER (18O, 97%)
  • [18O,10%]-Water (Normalized)
  • WATER (18O, 10%)
  • Water-18O (Unormalized)
  • (for PET), 97 atom % <SUP>18</SUP>O
  • 18O, 97%]-water
  • Water-1?O
  • Water-<sup>18<
  • Water-(18-O) (99% Isotopic Purity)
  • Water-(18-O) (97% Isotopic Purity)
  • WATER(180,97%)
  • Water-18O, normalized 1g Bottle
  • Water-18O, normalized 10g Bottle
  • Water-18O, normalized 25g bottle
  • Water (1?O, 97%)
  • [18O,99%]-Water
  • 14314-42-2
  • H2sup18supO
  • H218O
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