Homoharringtonine
Also known as: Omacetaxine mepesuccinate, HHT, Ceflatonin, Myelostat, CGX 635, Synribo, NSC 141633, (2R)-2-hydroxy-2-(4-hydroxy-4-methylpentyl)butanedioate, cephalotaxine 4-methyl 2-hydroxy-2-(4-hydroxy-4-methylpentyl)butanedioate, O-[(2R)-2,6-dihydroxy-2-(2-methoxy-2-oxoethyl)-6-methylheptanoyl]cephalotaxine
Homoharringtonine (CAS 26833-87-4) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C29H39NO9 and a molecular weight of 545.621 g/mol. Key properties include a melting point of 144-146ºC, a boiling point of 713.1±60.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 385.1±32.9 °C. It is classified under GHS with signal word Danger and hazard statements H300. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 26833-87-4
- Jingsj CID
- J-35561-0
- Molecular Formula
- C29H39NO9
- Molecular Weight
- 545.621 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 144-146ºC |
|---|---|
| Boiling Point | 713.1±60.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 385.1±32.9 °C |
| Exact Mass | 545.262512 |
| PSA | 134.99000 |
| LogP | 2.70 |
| Vapor Pressure | 0.0±2.4 mmHg at 25°C |
| Refractive Index | 1.605 |
| Storage Conditions | 2-8℃ |
| Additional Property | DMSO: soluble20mg/mL, clear |
GHS Safety & Compliance
- H300
Activity & Biological Data
| Target | STAT3 |
|---|---|
| Additional Information | [1]. Cao W, et al. Homoharringtonine induces apoptosis and inhibits STAT3 via IL-6/JAK1/STAT3 signal pathway in Gefitinib-resistant lung cancer cells. Sci Rep. 2015 Jul 13;5:8477 |
Frequently Asked Questions
What is the CAS number of Homoharringtonine?
The CAS number of Homoharringtonine is 26833-87-4.
What are the molecular formula and molecular weight of Homoharringtonine?
Homoharringtonine has molecular formula C29H39NO9 and molecular weight 545.621 g/mol.
Is Homoharringtonine hazardous?
Homoharringtonine has GHS signal word Danger and hazard statements H300.
What are the upstream and downstream products of Homoharringtonine?
For Homoharringtonine, Upstream Products: 2-Methylcyclopent-1-ene-1-carboxylic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Homoharringtonine (CAS 26833-87-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35561-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.