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MedKoo CAT#: 205848


Description: Iso-Fludelone is the third-generation epothilone B analogue with potential anti-mitotic and antineoplastic activites. Iso-fludelone binds to tubulin and induces microtubule polymerization and stabilizes microtubules against depolymerization, which may result in the inhibition of cell division, the induction of G2/M arrest, and apoptosis. Compared to other generations of epothilones, iso-fludelone exhibits increased stability, water solubility, potency, duration of action, tumor penetration as well as reduced toxicity. In addition, this agent is a not a substrate of the P-glycoprotein (P-gp), a multidrug resistance pump often overexpressed in cancer cells. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus).

Price and Availability

Size Price Shipping out time Quantity
Inquire bulk and customized quantity

Pricing updated 2020-08-11. Prices are subject to change without notice.

Iso-Fludelone is not in stock, but may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 205848
Name: Iso-Fludelone
Chemical Formula: C27H36F3NO6
Exact Mass: 527.24947
Molecular Weight: 527.57305
Elemental Analysis: C, 61.47; H, 6.88; F, 10.80; N, 2.65; O, 18.20

Synonym: IsoFludelone; KOS1803; 17isooxazolefludelone; Chemical structure: 17isooxazole26F3910dehydro1213desoxyepothilone B

IUPAC/Chemical Name: (4S,7R,8S,9S,10E,13E,16S)-4,8-dihydroxy-5,5,7,9-tetramethyl-16-((E)-1-(5-methylisoxazol-3-yl)prop-1-en-2-yl)-13-(trifluoromethyl)oxacyclohexadeca-10,13-diene-2,6-dione


InChi Code: InChI=1S/C27H36F3NO6/c1-15-8-7-9-19(27(28,29)30)10-11-21(16(2)12-20-13-17(3)37-31-20)36-23(33)14-22(32)26(5,6)25(35)18(4)24(15)34/h7-8,10,12-13,15,18,21-22,24,32,34H,9,11,14H2,1-6H3/b8-7+,16-12+,19-10+/t15-,18+,21-,22-,24-/m0/s1

SMILES Code: O=C(C[C@H](O)C1(C)C)O[C@H](/C(C)=C/C2=NOC(C)=C2)C/C=C(C(F)(F)F)\C/C=C/[C@H](C)[C@H](O)[C@@H](C)C1=O

Technical Data

Solid powder


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 DMSO, not in water

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:

Additional Information

Epothilone compounds in clinical trials: EPO-906; KOS-862; KOS-1584; KOS-1591; KOS-1803; KOS-1724.
Source: Proc Natl Acad Sci U S A. 2008 Sep 2;105(35):13157-62.


1: Chou TC, Zhang X, Zhong ZY, Li Y, Feng L, Eng S, Myles DR, Johnson R Jr, Wu N, Yin YI, Wilson RM, Danishefsky SJ. Therapeutic effect against human xenograft tumors in nude mice by the third generation microtubule stabilizing epothilones. Proc Natl Acad Sci U S A. 2008 Sep 2;105(35):13157-62. Epub 2008 Aug 28. PubMed PMID: 18755900; PubMed Central PMCID: PMC2529025.