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Merck

487090

Sigma-Aldrich

水- 18 O

99 atom % 18O

别名:

18O 标记水

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About This Item

线性分子式:
H218O
CAS号:
分子量:
20.02
MDL號碼:
分類程式碼代碼:
12142200
PubChem物質ID:
NACRES:
NA.12

描述

Normalized with respect to hydrogen

品質等級

同位素純度

99 atom % 18O

bp

100 °C (lit.)

mp

0 °C (lit.)

密度

1.11 g/mL at 20 °C (lit.)

質量偏移

M+2

SMILES 字串

[18OH2]

InChI

1S/H2O/h1H2/i1+2

InChI 密鑰

XLYOFNOQVPJJNP-NJFSPNSNSA-N

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一般說明

重氧水(H2180)是由共价连接的2个氢原子和1个氧18原子组成的同位素标记化合物。以氧18水的形式储存、运输和使用氧18最为方便。

應用

氧18水可用于正电子发射断层扫描(PET),它是一种核成像技术,通过观察体内代谢过程进行肿瘤、癌症分期、转移瘤、痴呆症等的辅助诊断。氧18水是目前仅有的适于稳定同位素探测(SIP)的通用细菌基质。氧18水已用于定量分析底栖细菌群落在不同氧化还原条件下的群体生长动力学。

儲存類別代碼

10 - Combustible liquids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

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


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分析证书(COA)

Lot/Batch Number

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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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