CAS No. 316-46-1

Batch: Purity:95.77
5-Fluorouridine Chemical Structure
Chemical Structure
Check the 5-Fluorouridine product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 316-46-1
Molecular Formula

C9H11FN2O6

Molecular Weight (MW) 262.19

Ordering Information

Biological Activity

5-Fluorouridine is a pyrimidine nucleoside analog and RNA synthesis inhibitor used as a chemotherapeutic agent in cancer research. It undergoes cellular metabolism and covalent incorporation into RNA transcripts, which alters RNA structure and disrupts ribozyme function. This incorporation leads to the inhibition of ribosomal RNA processing, induction of RNA damage, and suppression of cellular proliferation in various cancer cell lines.[1][2]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 52 mg/mL (198.32 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 52 mg/mL
Ethanol 26 mg/mL
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
Note: Technical data last updated: Sep 1, 2026.