Flucytosine

Name: Flucytosine
Brand: Vaqora Chemicals
SKU: VQ-013439

About Flucytosine

Flucytosine (CAS 2022-85-7) is a process intermediate or related compound of Emtricitabine offered by Vaqora Chemicals. Formula C4H4FN3O, molecular weight 129.09 g/mol. The IUPAC name is 6-amino-5-fluoro-1H-pyrimidin-2-one. Common synonyms include 6-Amino-5-fluoro-2(1H)-pyrimidinone and 4-Amino-5-fluoropyrimidin-2-ol.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Process chemists and analysts use it when developing synthetic routes to Emtricitabine, tracking process-related impurities and validating analytical methods. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer Flucytosine in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide. Stock is available for quick dispatch.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Emtricitabine

View every impurity, metabolite and intermediate we list for Emtricitabine.

Emtricitabine impurities

Specifications & identifiers

Chemical identifiers
Product name	Flucytosine
Catalogue No.	VQ-013439
CAS Number	2022-85-7
IUPAC name	6-amino-5-fluoro-1H-pyrimidin-2-one
Molecular formula	C₄H₄FN₃O
Molecular weight	129.09 g/mol
Exact mass	129.0338
Grade	Reference Standard
HSN code	2933
InChIKey	XRECTZIEBJDKEO-UHFFFAOYSA-N
SMILES	C1=NC(=O)NC(=C1F)N
PubChem CID	3366

Physical properties
Physical form	Solid
LogP (XLogP3)	-0.9
H-bond donors / acceptors	2 / 3
TPSA	67.5 Å²
Synonyms	6-Amino-5-fluoro-2(1H)-pyrimidinone, 4-Amino-5-fluoropyrimidin-2-ol, 6-Amino-2-oxo-5-fluoropyrimidine, Alcobon, Ancotil, 5-Fluorocytosine, Fluorocytosine, Fluocytosine, 5-Fluorocystosine, Flucytosin, 5-Fluorocytosin, Fluorcytosine

Safety & hazard information (GHS)

Health hazard

Signal word: Warning

Hazard statements

H361Suspected of damaging fertility or the unborn child

Precautionary statements: P203, P280, P318, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 2022-85-7

Biochemistry

5-Fluoro cytosine, 99%

CAS: 2022-85-7
Formula: C₄H₄FN₃O
MW: 129.09 g/mol

VQ-010682

Frequently asked questions

What is the CAS number of Flucytosine?

The CAS Registry Number of Flucytosine is 2022-85-7. It is also known as 6-Amino-5-fluoro-2(1H)-pyrimidinone, 4-Amino-5-fluoropyrimidin-2-ol, 6-Amino-2-oxo-5-fluoropyrimidine.

What is the molecular formula and molecular weight of Flucytosine?

Flucytosine has the molecular formula C4H4FN3O and a molecular weight of 129.09 g/mol. Its IUPAC name is 6-amino-5-fluoro-1H-pyrimidin-2-one.

What is Flucytosine used for?

Flucytosine is supplied as a characterised reference material related to Emtricitabine. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Flucytosine can I order?

We supply Flucytosine in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Flucytosine?

Yes. Every lot of Flucytosine is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Flucytosine be shipped internationally?

Yes. Flucytosine is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.