Ixabepilone

Also known as: Ixabepilone [INN], BMS 247550, BMS 247550-1, Ixempra, Aza-epothilone B, Azi-epothilone B, Unii-K27005np0a, (1S,3S,7S,10R,11S,12S,16R)-7,11-dihydroxy-8,8,10,12,16-pentamethyl-3-[(1E)-1-(2-methyl-4-thiazolyl)ethenyl]-17-oxa-4-azabicyclo[14.1.0]heptadecane-5,9-dione, 17-Oxa-4-azabicyclo[14.1.0]heptadecane-5,9-dione, 7,11-dihydroxy-8,8,10,12,16-pentamethyl-3-[(E)-1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]-, (1S,3S,7S,10R,11S,12S,16R)-

Ixabepilone (CAS 219989-84-1) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C27H42N2O5S and a molecular weight of 506.698 g/mol. Key properties include a boiling point of 697.8±55.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 375.8±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 219989-84-1
Jingsj CID: J-1956443-3
Molecular Formula: C₂₇H₄₂N₂O₅S
Molecular Weight: 506.698 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	697.8±55.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	375.8±31.5 °C
Exact Mass	506.281433
PSA	140.29000
LogP	1.77
Vapor Pressure	0.0±2.3 mmHg at 25°C
Refractive Index	1.533
Storage Conditions	-20 °C

Activity & Biological Data

Additional Information	[1]. John T. Hunt Discovery of Ixabepilone. Mol Cancer Ther February 2009 8; 275

Frequently Asked Questions

What is the CAS number of Ixabepilone?

The CAS number of Ixabepilone is 219989-84-1.

What are the molecular formula and molecular weight of Ixabepilone?

Ixabepilone has molecular formula C27H42N2O5S and molecular weight 506.698 g/mol.

What are the upstream and downstream products of Ixabepilone?

For Ixabepilone, Upstream Products: Epothilone B.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Ixabepilone (CAS 219989-84-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1956443-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.