487090
Agua-18O
99 atom % 18O
Sinónimos:
18O Labeled water
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Fórmula lineal:
H218O
Número CAS:
Peso molecular:
20.02
NACRES:
NA.12
PubChem Substance ID:
UNSPSC Code:
12142200
MDL number:
Isotopic purity:
99 atom % 18O
Mass shift:
M+2
Form:
liquid
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Permítanos ayudarleInChI key
XLYOFNOQVPJJNP-NJFSPNSNSA-N
SMILES string
[18OH2]
InChI
1S/H2O/h1H2/i1+2
description
Normalized with respect to hydrogen
isotopic purity
99 atom % 18O
form
liquid
bp
100 °C (lit.)
mp
0 °C (lit.)
density
1.11 g/mL at 20 °C (lit.)
mass shift
M+2
storage temp.
room temp
Quality Level
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General description
H2180 is isotopically modified compound consisting of two hydrogen atoms covalently bonded to oxygen-18. It is most convenient to store, transport and use Oxygen-18 in the form of water enriched with this isotope.
Application
O-18 enriched water is used in Positron-Emission Tomography (PET), a nuclear imaging technique that is used to observe metabolic processes in the body as an aid to the diagnosis of disease such as tumors, staging of cancer, metastasis, dementia, etc. H2180 is currently the only potential universal bacterial substrate suitable for stable isotope probing (SIP). It has been used in the quantification of population-specific growth dynamics in benthic bacterial communities in response to changing redox conditions.
Clase de almacenamiento
10 - Combustible liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
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H H Coenen et al.
Nuclear medicine and biology, 37(7), 727-740 (2010-09-28)
Positron emission tomography (PET) is a rapidly expanding clinical modality worldwide thanks to the availability of compact medical cyclotrons and automated chemistry for the production of radiopharmaceuticals. There is an armamentarium of fluorine-18 ((18)F) tracers that can be used for
Ömer K Coskun et al.
The ISME journal, 13(6), 1546-1559 (2019-02-21)
The benthos in estuarine environments often experiences periods of regularly occurring hypoxic and anoxic conditions, dramatically impacting biogeochemical cycles. How oxygen depletion affects the growth of specific uncultivated microbial populations within these diverse benthic communities, however, remains poorly understood. Here
Elizabeth A Rettedal et al.
MicrobiologyOpen, 4(2), 208-219 (2015-02-05)
Current limitations in culture-based methods have lead to a reliance on culture-independent approaches, based principally on the comparative analysis of primary semantides such as ribosomal gene sequences. DNA can be remarkably stable in some environments, so its presence does not
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