5-Fluorocytidine
5-Fluorocytidine (CAS: 2341-22-2), a fluorinated pyrimidine nucleoside with the molecular formula C9H12FN3O5 and a molecular weight of 261.21 g/mol, is a key building block in chemical biology and synthesis. It is primarily utilised as an intermediate in the development of novel therapeutic agents and in biochemical research, playing a role in nucleic acid analogue studies.

Chemical Biology Research
5-Fluorocytidine serves as a valuable tool in chemical biology for investigating nucleic acid structure, function, and interactions. Its fluorinated analogue nature allows for probing biological pathways and enzyme mechanisms.
Pharmaceutical Intermediate
This nucleoside derivative acts as a crucial intermediate in the synthesis of various pharmaceutical compounds. It is employed in the development of antiviral and antifungal agents, leveraging its modified pyrimidine structure.
Nucleoside Chemistry
In nucleoside chemistry, 5-Fluorocytidine is used for the synthesis of modified oligonucleotides and other complex nucleic acid structures. Its incorporation can impart unique properties to DNA or RNA analogues.
| Molecular weight | 261.21 |
|---|---|
| Empirical formula | C9H12FN3O5 |
| Assay | 97% |
| Optical activity | [α]20/D +55°, c = 1% in methanol |
| Melting point | 196-200 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 5-Fluorocytidine used for?
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5-Fluorocytidine is primarily used in chemical biology research and as an intermediate in the synthesis of pharmaceutical compounds, particularly antiviral and antifungal agents. It is also employed in nucleoside chemistry for creating modified nucleic acid structures.
What is the CAS number and formula for 5-Fluorocytidine?
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The CAS number for 5-Fluorocytidine is 2341-22-2, and its molecular formula is C9H12FN3O5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Fluorocytidine with an assay of 97%. This product is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should 5-Fluorocytidine be handled safely?
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5-Fluorocytidine is classified as a Warning substance, with hazards including skin irritation (H315), eye irritation (H319), and respiratory irritation (H335). Handle with a dust mask type N95, eyeshields, and gloves in a well-ventilated area. Avoid breathing dust.
Is 5-Fluorocytidine a controlled substance?
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The provided data does not indicate that 5-Fluorocytidine is a controlled substance.
How is 5-Fluorocytidine packed and shipped?
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5-Fluorocytidine is packed and shipped according to international standards for chemical reagents, ensuring safe transit for global export. Specific packaging details can be provided upon request.
How can I request a sample or quote for 5-Fluorocytidine?
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To request a sample or a quote for 5-Fluorocytidine, please contact our sales team via the website or direct email, providing your specific requirements.
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