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API Process Intermediates & Related Compounds

Flucytosine

Reference StandardIn stock

Order Flucytosine (CAS 2022-85-7) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-012497.

Pack sizes
Flucytosine chemical structure
CAS number2022-85-7
FormulaC4H4FN3O
Molar mass129.09 g/mol
Physical formSolid
HS code2933
InChIKeyXRECTZIEBJDKEO-UHFFFAOYSA-N
IUPAC name6-amino-5-fluoro-1H-pyrimidin-2-one

About Flucytosine

Flucytosine sits in our API Process Intermediates & Related Compounds section and ships worldwide from stock or short lead time. Identity at a glance (Reference Standard): CAS 2022-85-7, formula C4H4FN3O and molar mass 129.09 g/mol. It is handled as a solid.

Use cases we see most often

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Safe handling

Classified under GHS with signal word Warning and hazard statements H361. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Each lot travels with a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Emtricitabine

See every impurity, metabolite and related compound we list for this API.

Emtricitabine standards

Typical uses

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Applications

Specifications and identifiers

Specifications of Flucytosine
Product nameFlucytosine
Catalogue numberZX-012497
CAS number2022-85-7
IUPAC name6-amino-5-fluoro-1H-pyrimidin-2-one
Molecular formulaC4H4FN3O
Molar mass129.09 g/mol
Exact mass129.0338
GradeReference Standard
Physical formSolid
XLogP3-0.9
H-bond donors / acceptors2 / 3
Topological polar surface area67.5 Ų
HS code2933
InChIKeyXRECTZIEBJDKEO-UHFFFAOYSA-N
SMILESC1=NC(=O)NC(=C1F)N
PubChem CID3366
Synonyms6-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

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS08 Health hazard
Health hazard

Signal word Warning

  • H361Suspected of damaging fertility or the unborn child

Precautionary statements P203, P280, P318, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Flucytosine
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Flucytosine

Which CAS number identifies Flucytosine?
Flucytosine is registered under CAS 2022-85-7. You may also see it listed as 6-Amino-5-fluoro-2(1H)-pyrimidinone, 4-Amino-5-fluoropyrimidin-2-ol, 6-Amino-2-oxo-5-fluoropyrimidine. Our catalogue number for this item is ZX-012497.
What are the formula and molar mass of Flucytosine?
For Flucytosine, its formula is C4H4FN3O and its molar mass is 129.09 g/mol. The systematic (IUPAC) name is 6-amino-5-fluoro-1H-pyrimidin-2-one. InChIKey XRECTZIEBJDKEO-UHFFFAOYSA-N lets you match it in any structure database.
How is Flucytosine used in pharmaceutical QC?
Flucytosine is a characterised reference material linked to Emtricitabine. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Flucytosine?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Flucytosine?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Flucytosine to my country?
Yes. Because Flucytosine is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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