Harringtonine

Also known as: Harringtonine, HRT, NSC 124147, Cephalotaxine, 4-methyl 2-hydroxy-2-(3-hydroxy-3-methylbutyl)butanedioate (ester), Harringtonin, HT, O-[(2R)-2,5-Dihydroxy-2-(2-methoxy-2-oxoethyl)-5-methylhexanoyl]cephalotaxine

Harringtonine (CAS 26833-85-2) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C28H37NO9 and a molecular weight of 531.595 g/mol. Key properties include a melting point of 73-75ºC, a boiling point of 679.4±55.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 364.7±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 26833-85-2
Jingsj CID: J-1976299-3
Molecular Formula: C₂₈H₃₇NO₉
Molecular Weight: 531.595 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	73-75ºC
Boiling Point	679.4±55.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	364.7±31.5 °C
Exact Mass	531.246826
PSA	123.99000
LogP	2.58
Vapor Pressure	0.0±2.2 mmHg at 25°C
Refractive Index	1.610
Storage Conditions	-20℃

Activity & Biological Data

Additional Information	[1]. Fresno M, et al. Inhibition of translation in eukaryotic systems by harringtonine. Eur J Biochem. 1977 Jan;72(2):323-30. [2]. Kaur P, et al. Inhibition of chikungunya virus replication by harringtonine, a novel antiviral that suppresses viral protein expression. Antimicrob Agents Chemother. 2013 Jan;57(1):155-67. [3]. Piao YF, et al. Growth inhibition of human myeloid leukemia cells in vitro by harringtonine. Gan To Kagaku Ryoho. 1990 Feb;17(2):281-5.

Additional Information

[1]. Fresno M, et al. Inhibition of translation in eukaryotic systems by harringtonine. Eur J Biochem. 1977 Jan;72(2):323-30. [2]. Kaur P, et al. Inhibition of chikungunya virus replication by harringtonine, a novel antiviral that suppresses viral protein expression. Antimicrob Agents Chemother. 2013 Jan;57(1):155-67. [3]. Piao YF, et al. Growth inhibition of human myeloid leukemia cells in vitro by harringtonine. Gan To Kagaku Ryoho. 1990 Feb;17(2):281-5.

Frequently Asked Questions

What is the CAS number of Harringtonine?

The CAS number of Harringtonine is 26833-85-2.

What are the molecular formula and molecular weight of Harringtonine?

Harringtonine has molecular formula C28H37NO9 and molecular weight 531.595 g/mol.

What are the upstream and downstream products of Harringtonine?

For Harringtonine, Upstream Products: Cephalotaxine.

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. "Harringtonine (CAS 26833-85-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1976299-3 (accessed 2026-11-06).

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