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Cat.No. 3257 - 5-Fluorouracil | C4H3FN2O2 | CAS No. 51-21-8
Description: Inhibits RNA and DNA synthesis
Alternative Names: 5-FU
Chemical Name: 5-Fluoro-2,4-(1H,3H)-pyrimidinedione
Purity: ≥99% (HPLC)
Citations (2)

Biological Activity

Anticancer agent. Metabolized to form fluorodeoxyuridine monophosphate (FdUMP), fluorodeoxyuridine triphosphate (FdUTP) and fluorouridine (FUTP). FdUMP inhibits thymidylate synthase, causing a reduction in dTMP synthesis. FUTP and FdUTP are misincorporated into RNA and DNA respectively.

Technical Data

M. Wt 130.08
Formula C4H3FN2O2
Storage Store at +4°C
Purity ≥99% (HPLC)
CAS Number 51-21-8
PubChem ID 3385
Smiles O=C1C(F)=CNC(N1)=O

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

All Tocris products are intended for laboratory research use only.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 13.01 100
ethanol 1.3 10

Preparing Stock Solutions

The following data is based on the product molecular weight 130.08. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 7.69 mL 38.44 mL 76.88 mL
5 mM 1.54 mL 7.69 mL 15.38 mL
10 mM 0.77 mL 3.84 mL 7.69 mL
50 mM 0.15 mL 0.77 mL 1.54 mL

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Product Datasheets

Certificate of Analysis / Product Datasheet
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References are publications that support the products' biological activity.

Ghoshal and Jacob (1997) An alternative molecular mechanism of action of 5-fluorouracil, a potent anticancer drug. Biochem.Pharmacol. 53 1569 PMID: 9264308

Peters et al (2002) Induction of thymidylate synthase as a 5-fluorouracil resistance mechanism. Biochim.Biophys.Acta. 1587 194 PMID: 12084461

Longley et al (2003) 5-Fluorouracil: mechanisms of action and clinical strategies. Nat.Rev.Cancer 3 330 PMID: 12724731

If you know of a relevant reference for 5-Fluorouracil, please let us know.

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View all DNA, RNA and Protein Synthesis Inhibitors

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2 Citations for 5-Fluorouracil

Citations are publications that use Tocris products. Selected citations for 5-Fluorouracil include:

Robinson et al (2013) RB1 status in triple negative breast cancer cells dictates response to radiation treatment and selective therapeutic drugs. PLoS One 8 e78641 PMID: 24265703

Fukushima et al (2015) Atonal homolog 1 protein stabilized by tumor necrosis factor α induces high malignant potential in colon cancer cell line. Cancer Sci 106 1000 PMID: 26017781

Do you know of a great paper that uses 5-Fluorouracil from Tocris? If so please let us know.

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A collection of over 750 products for cancer research, the guide includes research tools for the study of:

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