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Key Documents

V900351

Sigma-Aldrich

5-Fluorocytosine

Vetec, reagent grade, 99%

Synonym(s):

4-amino-5-fluoro-2(1H)-pyrimidinone, Flucytosine

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About This Item

Empirical Formula (Hill Notation):
C4H4FN3O
CAS Number:
Molecular Weight:
129.09
Beilstein:
127285
EC Number:
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
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grade

reagent grade

product line

Vetec

Assay

99%

mp

298-300 °C (dec.) (lit.)

storage temp.

2-8°C

SMILES string

NC1=NC(=O)NC=C1F

InChI

1S/C4H4FN3O/c5-2-1-7-4(9)8-3(2)6/h1H,(H3,6,7,8,9)

InChI key

XRECTZIEBJDKEO-UHFFFAOYSA-N

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Biochem/physiol Actions

Nucleoside analog that has antifungal activities. 5-FC is deaminated by cytosine deaminase to product 5-fluorouracil, resulting in RNA miscoding. 5-Fluorocytosine inhibits DNA and RNA synthesis and interferes with ribosomal protein synthesis.

Legal Information

Vetec is a trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Health hazard

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Repr. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Francesco Imperi et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(18), 7458-7463 (2013-04-10)
Although antibiotic resistance represents a public health emergency, the pipeline of new antibiotics is running dry. Repurposing of old drugs for new clinical applications is an attractive strategy for drug development. We used the bacterial pathogen Pseudomonas aeruginosa as a
P Francis et al.
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 15(6), 1003-1018 (1992-12-01)
Flucytosine is an antifungal agent useful in combination with amphotericin B in the treatment of several deeply invasive mycoses. The potentially dose-limiting, hematologic, gastrointestinal, and hepatic toxicities of flucytosine lead to a reluctance to use it in myelosuppressed patients. To
Angela Loyse et al.
The Journal of antimicrobial chemotherapy, 68(11), 2435-2444 (2013-06-22)
Current, widely accepted guidelines for the management of HIV-associated cryptococcal meningoencephalitis (CM) recommend amphotericin B combined with flucytosine (5-FC) for ≥2 weeks as the initial induction treatment of choice. However, access to flucytosine in Africa and Asia, where disease burden
J E Bennet
Annals of internal medicine, 86(3), 319-321 (1977-03-01)
Flucytosine is a systemic antifungal drug that is readily absorbed from the gastrointestinal tract. The most clearly documented therapeutic effect has been in cryptococcosis, candidiasis, and chromomycosis. An important limitation of the use of flucytosine in all three diseases has
W L Whelan
Critical reviews in microbiology, 15(1), 45-56 (1987-01-01)
In terms of genetically determined susceptibility to the clinical antifungal agent 5-fluorocytosine (5-FC), Candida albicans may be homozygous sensitive (FCY/FCY), homozygous resistant (fcy/fcy), or heterozygous (fcy/FCY). Although heterozygotes are only slightly resistant, they occur at significant frequency among clinical strains

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