U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

Details

Stereochemistry RACEMIC
Molecular Formula C6H8FN3O3
Molecular Weight 188.147
Optical Activity ( + / - )
Defined Stereocenters 0 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of FLUOROMISONIDAZOLE F-18

SMILES

OC(C[18F])CN1C=CN=C1[N+]([O-])=O

InChI

InChIKey=HIIJZYSUEJYLMX-JZRMKITLSA-N
InChI=1S/C6H8FN3O3/c7-3-5(11)4-9-2-1-8-6(9)10(12)13/h1-2,5,11H,3-4H2/i7-1

HIDE SMILES / InChI

Molecular Formula C6H8FN3O3
Molecular Weight 188.147
Charge 0
Count
MOL RATIO 1 MOL RATIO (average)
Stereochemistry RACEMIC
Additional Stereochemistry No
Defined Stereocenters 0 / 1
E/Z Centers 0
Optical Activity ( + / - )

Description

Fluoromisonidazole F-18 ([F-18] FMISO) is used as a positron emission tomography (PET) radiotracer for imaging. It is generated by labeling fluoromisonidazole with fluorine-18. It is the most widely used nitroimidazole imaging agent for use as a non-invasive way to localize and quantify hypoxia. [18F] decays by positron emission. FMISO binds covalently to cellular molecules at rates that are inversely proportional to intracellular oxygen concentration. In hypoxic cells, FMISO is trapped, which is the basis for the use of this tracer to measure hypoxia.

Approval Year

PubMed

Patents

Sample Use Guides

In Vivo Use Guide
Head and Neck Cancer; Lung Cancer; Liver Cancer: 10 mCi [F-18] FMISO (Fluoromisonidazole F-18)
Route of Administration: Intravenous
Substance Class Chemical
Record UNII
8MSY49469G
Record Status Validated (UNII)
Record Version