WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 100360

CAS#: 50-91-9

Description: Floxuridine is a fluorinated pyrimidine monophosphate analogue of 5-fluoro-2'-deoxyuridine-5'-phosphate (FUDR-MP) with antineoplastic activity. As an antimetabolite, floxuridine inhibits thymidylate synthetase, resulting in disruption of DNA synthesis and cytotoxicity. This agent is also metabolized to fluorouracil and other metabolites that can be incorporated into RNA and inhibit the utilization of preformed uracil in RNA synthesis. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus).

Chemical Structure

CAS# 50-91-9

Theoretical Analysis

MedKoo Cat#: 100360
Name: Floxuridine
CAS#: 50-91-9
Chemical Formula: C9H11FN2O5
Exact Mass: 246.0652
Molecular Weight: 246.19
Elemental Analysis: C, 43.91; H, 4.50; F, 7.72; N, 11.38; O, 32.49

Size Price Shipping out time Quantity
500mg USD 90 Same day
1g USD 150 Same day
2g USD 250 Same day
5g USD 550 Same day
10g USD 950 Same day
20g USD 1650 Same day
50g USD 2250 2 weeks
100g USD 2950 2 weeks
Inquire bulk and customized quantity

Pricing updated 2021-02-26. Prices are subject to change without notice.

Floxuridine, purity > 98%, is in stock. The same day shipping after order is received.

Synonym: FdUrD; floxuridin; fluorodeoxyuridine; fluorouridine deoxyribose; fluoruridine deoxyribose. FUDF. 5FUDR; FDUR; FUdR. WR138720.

IUPAC/Chemical Name: 5-fluoro-1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione


InChi Code: InChI=1S/C9H11FN2O5/c10-4-2-12(9(16)11-8(4)15)7-1-5(14)6(3-13)17-7/h2,5-7,13-14H,1,3H2,(H,11,15,16)/t5-,6+,7+/m0/s1

SMILES Code: O=C1NC(C(F)=CN1[C@@H]2O[C@H](CO)[C@@H](O)C2)=O

White powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in water (50 mg/ml), alcohol (1:12), isopropyl alcohol (1:43), methanol (1:7), aqueous buffers, acetone, DMSO (49 mg/ml) at 25 °C, and ethanol (10 mg/ml) at 25 °C. Insoluble in ether, benzene, and chloroform.

Shelf Life:
>5 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:

Preparing Stock Solutions

The following data is based on the product molecular weight 246.19 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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Additional Information

Floxuridine for Injection USP, an antineoplastic antimetabolite, is available as a sterile, nonpyrogenic, lyophilized powder for reconstitution. Each vial contains 500 mg of floxuridine which is to be reconstituted with 5 mL of sterile water for injection. An appropriate amount of reconstituted solution is then diluted with a parenteral solution for intra-arterial infusion. Floxuridine is a fluorinated pyrimidine. Chemically, floxuridine is 2'-Deoxy-5-fluorouridine, with a molecular formula of C9H11FN2O5. It is a white to off-white odorless solid which is freely soluble in water. The 2% aqueous solution has a pH of between 4.0 and 5.5. The molecular weight of floxuridine is 246.20.
When floxuridine is given by rapid intra-arterial injection it is apparently rapidly catabolized to 5-fluorouracil. Thus, rapid injection of floxuridine produces the same toxic and antimetabolic effects as does 5-fluorouracil. The primary effect is to interfere with the synthesis of deoxyribonucleic acid (DNA) and to a lesser extent inhibit the formation of ribonucleic acid (RNA). However, when floxuridine is given by continuous intraarterial infusion its direct anabolism to floxuridine-monophosphate is enhanced, thus increasing the inhibition of DNA. Floxuridine is metabolized in the liver. The drug is excreted intact and as urea, fluorouracil, α-fluoro-β-ureidopropionic acid, dihydrofluorouracil, α-fluoro-β-guanidopropionic acid and α-fluoro-β-alanine in the urine; it is also expired as respiratory carbon dioxide. Pharmacokinetic data on intra-arterial infusion of floxuridine are not available.