proapoptotic anitproliferative plant growth regulator

5-Fluorouracil 1β-D-ribofuranoside, FUrd
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
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MDL number:
PubChem Substance ID:

biological source

synthetic (organic)

Quality Level


≥99% (HPLC)




water: 50 mg/mL, clear to slightly hazy, colorless to faintly yellow

SMILES string




InChI key


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General description

5-Fluorouridine (FUrd) is a fluoropyrimidine nucleoside analog and a cell-permeable modified RNA precursor.


5-Fluorouridine has been used for labeling active transcription sites in the porcine fetal fibroblasts and human cell lines for immunocytochemistry analysis. It has also been used to monitor apoptosis during drug sensitivity assay in esophageal squamous cell carcinoma (ESCC) cells.


100, 250 mg in poly bottle
1 g in poly bottle

Biochem/physiol Actions

5-Fluorouridine (FUrd) is cytotoxic towards cancer cells. FUrd is often used in chemical and biochemical comparison studies with fluorouracil and thymine analogs.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Angelica M Bello et al.
Journal of medicinal chemistry, 52(6), 1648-1658 (2009-03-06)
A series of 6-substituted and 5-fluoro-6-substituted uridine derivatives were synthesized and evaluated for their potential as anticancer agents. The designed molecules were synthesized from either fully protected uridine or the corresponding 5-fluorouridine derivatives. The mononucleotide derivatives were used for enzyme...
Inhibition of RNA synthesis by 5-fluorouridine accounts for its cyto toxicity on colorectal cancer cells in vitro
Subbarayan PR, et al.
Cancer research, 65(9) (2005)
Nikolaos Tsesmetzis et al.
Cancers, 10(7) (2018-07-26)
Antimetabolites, in particular nucleobase and nucleoside analogues, are cytotoxic drugs that, starting from the small field of paediatric oncology, in combination with other chemotherapeutics, have revolutionised clinical oncology and transformed cancer into a curable disease. However, even though combination chemotherapy...
P V Sahasrabudhe et al.
Nucleic acids research, 23(19), 3916-3921 (1995-10-11)
The effects of 5-fluorouridine (FUrd) and 5-fluorodeoxyuridine (FdUrd) substitution on the stabilities of duplex RNA and DNA have been studied to determine how FUrd substitution in nucleic acids may alter the efficiency of biochemical processes that require complementary base pairing...
Mingjie Chen et al.
The Plant cell, 23(8), 2991-3006 (2011-08-11)
Nucleotides are synthesized from de novo and salvage pathways. To characterize the uridine salvage pathway, two genes, UKL1 and UKL2, that tentatively encode uridine kinase (UK) and uracil phosphoribosyltransferase (UPRT) bifunctional enzymes were studied in Arabidopsis thaliana. T-DNA insertions in...

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