C4H4FN3O
129.09 g/mol
APIWarning
5-Fluorocytosine
CAS2022-85-7EC217-968-7
Category
API
Compound Class
Amine
Primary Use
Pharmaceutical Raw Material
5-Fluorocytosine is a fluorinated pyrimidine compound used as an antifungal active pharmaceutical ingredient. It is commonly employed in combination therapy for serious fungal infections, particularly those caused by Candida and Cryptococcus species.
antifungal active pharmaceutical ingredient for pharmaceutical manufacturingraw material for combination therapy formulations targeting Candida infectionsraw material for combination therapy formulations targeting cryptococcosis
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Safety Reference
Warning
H361Suspected of damaging fertility or the unborn child
Customs Tariff Classification
The international HS code for 5-Fluorocytosine (CAS 2022-85-7) is 2933.59.
HS code (international, 6-digit)
2933.59
EU CN code (8-digit)
2933 59 95
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
6-amino-5-fluoro-1H-pyrimidin-2-one
InChIKey
XRECTZIEBJDKEO-UHFFFAOYSA-N
SMILES
C1=NC(=O)NC(=C1F)N
Synonyms (73)
- 1LD
- 5-FC
- Flucytosine (JP18/USP/INN)
- Flucytosine [USAN)
- Flucytosine for system suitability, European Pharmacopoeia (EP)
- Flucytosine, European Pharmacopoeia (EP)
- Flucytosine, United States Pharmacopeia (USP)
- Flucytosinum [INN-Latin]
- 5-Flucytosine
- 5-Fluorocystosine
- 5-Fluorocytosin
- 5-Fluorocytosine
- 5-Fluorocytosine (5-FC)
- 5-Flurocytosine
- 5-fluorocytocine
- 5-fluorocytosine Form I
- 5-fluorocytosine Form II
- Ancoban
- Ancobon
- Ancobon (TN)
- Ancotil
- Ancotyl
- Cytosine, 5-fluoro-
- EMTRICITABINE IMPURITY E
- FLUCYTOSINE [MART.]
- Flourocytosine
- Flucitosina
- Flucytosin
- Flucytosine (Ancobon)
- Flucytosine (Standard)
- Flucytosine CRS
- Flucytosine RS
- Flucytosine, 5-Fluorocytosine
- Flucytosinum
- Flucytosone
- Fluocytosine
- Fluorcytosine
- Fluorocytosine
- GL663142 & 5FC
- Ro 2-9915
- Ro 29915 E/265601
- flucytosina
- flucytosine
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