Harringtonine

Name: Harringtonine
Brand: MedChemExpress
SKU: HY-N0862
Rating: 5.0 (17 reviews)

Cat. No.: HY-N0862 Purity: 99.93%: Data Sheet
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Handling Instructions
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Harringtonine is a natural Cephalotaxus alkaloid that inhibits protein synthesis. Harringtonine has anti-chikungunya virus (CHIKV) activities with an EC₅₀ of 0.24 μM.

For research use only. We do not sell to patients.

CAS No. : 26833-85-2

Size	Stock	Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO ready for reconstitution	In-stock	Estimated Time of Arrival: December 31
Solution
10 mM * 1 mL in DMSO	In-stock	Estimated Time of Arrival: December 31
Solid
1 mg	In-stock	Estimated Time of Arrival: December 31
5 mg	In-stock	Estimated Time of Arrival: December 31
10 mg	In-stock	Estimated Time of Arrival: December 31
50 mg	Get quote
100 mg	Get quote

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This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 17 publication(s) in Google Scholar

17 Publications Citing Use of MCE Harringtonine

Bio/Physico-chemical Assay

: Harringtonine purchased from MedChemExpress. Usage Cited in: Cancer Res. 2025 Aug 8. [Abstract]; Cells were treated with 2 µg/ml harringtonine (HT) for 3 minutes before cell lysate preparation. The total transcript level for AR mRNA in each fraction was shown in the bar graphs and the percentage shift was calculated.

: Harringtonine purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Oct 13;16(1):9075. [Abstract]; Ribosomal elongation speed was measured using harringtonine chase. Polysome profiles of CTL cells or A8-KO cells treated with harringtonine (2 μg/mL; 0–5 min) for indicated times were obtained.

: Harringtonine purchased from MedChemExpress. Usage Cited in: Nat Commun. 2024 Aug 26;15(1):7061. [Abstract]; Harringtonine (2 μg/mL; 60–180 s). Smoothed metagene plots for a ribosome run-off assay with harringtonine (HAR) chase were generated.

: Harringtonine purchased from MedChemExpress. Usage Cited in: Nat Commun. 2024 Aug 26;15(1):7061. [Abstract]; Harringtonine (2 μg/mL; 60–180 s).The expansion of the ribosome-free area over time by harringtonine chase. Linear regression revealed that the global elongation rate was 4.1 codon/s.

: Harringtonine purchased from MedChemExpress. Usage Cited in: Nucleic Acids Res. 2019 Apr 8;47(6):e33. [Abstract]; HAR: clusters identified upon acute translation suppression by Harringtonine (2 μg/ml; 1 h). Distribution of AGO2 SpyCLIP clusters in different regions of protein-coding genes and distribution of AGO2 SpyCLIP clusters in different genomic regions corrected by region size.

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Biological Activity
Protocol
Purity & Documentation
References
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Description

Harringtonine is a natural Cephalotaxus alkaloid that inhibits protein synthesis. Harringtonine has anti-chikungunya virus (CHIKV) activities with an EC₅₀ of 0.24 μM.

Cellular Effect

Cell Line	Type	Value	Description	References
BHK-21	EC₅₀	0.24 μM Compound: 22	Antiviral activity against Chikungunya virus infected in BHK21 cells assessed as inhibition of viral replication after 24 hrs Antiviral activity against Chikungunya virus infected in BHK21 cells assessed as inhibition of viral replication after 24 hrs	[PMID: 24079775]
HL-60	IC₅₀	0.047 μM Compound: HT	Antiproliferative activity against human HL60 cells after 62 hrs by MTS assay Antiproliferative activity against human HL60 cells after 62 hrs by MTS assay	[PMID: 29286665]
HL-60	IC₅₀	50.5 nM Compound: HT	Antiproliferative activity against human HL-60 cells assessed as inhibition of cell growth measured after 68 hrs by MTS assay Antiproliferative activity against human HL-60 cells assessed as inhibition of cell growth measured after 68 hrs by MTS assay	[PMID: 35148094]
HeLa	IC₅₀	4 μM Compound: HT	Antiproliferative activity against human HeLa cells assessed as inhibition of cell growth measured after 68 hrs by MTS assay Antiproliferative activity against human HeLa cells assessed as inhibition of cell growth measured after 68 hrs by MTS assay	[PMID: 35148094]
P388	IC₅₀	0.032 μg/mL Compound: 3	Antileukemic activity against P-388 leukemia cells. Antileukemic activity against P-388 leukemia cells.	10.1016/0960-894X(96)00302-2

In Vitro

Harringtonine inhibits the elongation phase of translation by preventing substrate binding to the acceptor site on the 60-S ribosome subunit and therefore block aminoacyl-tRNA binding and peptide bond formation^[1]. Harringtonine displays potent inhibition of Chikungunya virus infection with an EC₅₀ of 0.24 μM. Harringtonine could inhibit other alphaviruses^[2]. Harringtonine inhibits the growth of human myeloid leukemia cells in vitro at low concentrations. The mechanism of the antitumor action of harringtonine is considered to be an effect on protein synthesis and is characterized by breakdown of polysomes to monosomes^[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Molecular Weight

531.59

Formula

C₂₈H₃₇NO₉

CAS No.

26833-85-2

Appearance

Solid

Color

White to light yellow

SMILES

O=C([C@@](CC(OC)=O)(O)CCC(C)(O)C)O[C@H]1[C@](C2=CC(OCO3)=C3C=C2CCN4CCC5)([H])[C@]45C=C1OC

Structure Classification

Initial Source

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	1 year
	-20°C	6 months

Solvent & Solubility

In Vitro:

DMSO : 100 mg/mL (188.11 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	1.8811 mL	9.4057 mL	18.8115 mL
5 mM	0.3762 mL	1.8811 mL	3.7623 mL
10 mM	0.1881 mL	0.9406 mL	1.8811 mL

View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

Molarity Calculator
Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.5 mg/mL (4.70 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (4.70 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Protocol 3

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: ≥ 2.5 mg/mL (4.70 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

DMSO +

Tween-80 +

Saline

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Calculation results:

Working solution concentration: mg/mL

Method for preparing stock solution: mg drug dissolved in μL DMSO (Stock solution concentration: mg/mL).

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).

Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.

If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.

Purity & Documentation

Purity: 99.93%

Select Batch:

Data Sheet (283 KB) SDS (480 KB)

COA (260 KB) HNMR (301 KB) LCMS (97 KB)

Handling Instructions (2659 KB)

References

[1]. Fresno M, et al. Inhibition of translation in eukaryotic systems by harringtonine. Eur J Biochem. 1977 Jan;72(2):323-30. [Content Brief]

[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. [Content Brief]

[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. [Content Brief]

Cell Assay
^[2]

For harringtonine treatment studies with Sindbis virus, BHK21 cells are seeded into 96-well plates and infected with Sindbis virus at an MOI of 1 for 1 h prior to being washed twice with PBS and incubated with various concentrations of harringtonine (0.1 μM, 1 μM, 5 μM, and 10 μM) at 37°C with 5% CO2. Cell supernatants are harvested for plaque assays at 24 h postinfection^[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

References

[1]. Fresno M, et al. Inhibition of translation in eukaryotic systems by harringtonine. Eur J Biochem. 1977 Jan;72(2):323-30. [Content Brief]

[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. [Content Brief]

[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. [Content Brief]

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

DMSO	1 mM	1.8811 mL	9.4057 mL	18.8115 mL	47.0287 mL
	5 mM	0.3762 mL	1.8811 mL	3.7623 mL	9.4057 mL
	10 mM	0.1881 mL	0.9406 mL	1.8811 mL	4.7029 mL
	15 mM	0.1254 mL	0.6270 mL	1.2541 mL	3.1352 mL
	20 mM	0.0941 mL	0.4703 mL	0.9406 mL	2.3514 mL
	25 mM	0.0752 mL	0.3762 mL	0.7525 mL	1.8811 mL
	30 mM	0.0627 mL	0.3135 mL	0.6270 mL	1.5676 mL
	40 mM	0.0470 mL	0.2351 mL	0.4703 mL	1.1757 mL
	50 mM	0.0376 mL	0.1881 mL	0.3762 mL	0.9406 mL
	60 mM	0.0314 mL	0.1568 mL	0.3135 mL	0.7838 mL
	80 mM	0.0235 mL	0.1176 mL	0.2351 mL	0.5879 mL
	100 mM	0.0188 mL	0.0941 mL	0.1881 mL	0.4703 mL

Harringtonine Related Classifications

Help & FAQs

Do most proteins show cross-species activity?
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

Harringtonine26833-85-2CHIKVInfluenza VirusChikungunya virusInhibitorinhibitorinhibit

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Harringtonine

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Harringtonine Related Antibodies

17 Publications Citing Use of MCE Harringtonine

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Complete Stock Solution Preparation Table

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