Cephalotaxine (Synonyms: (-)-Cephalotaxine; ZINC19795976)

Cat. No.: HY-N0838 Purity: 99.21%: FAQs
Data Sheet SDS COA Handling Instructions

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Cephalotaxlen ((-)-Cephalotaxine) is an alkaloid that can be isolated from Cephalotaxus fortunei, with antileukemic and antiviral activities. Cephalotaxlen has anti-ZIKV (Zika virus) activity.

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

Cephalotaxine Chemical Structure

CAS No. : 24316-19-6

Size	Price	Stock	Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO ready for reconstitution	USD 55	In-stock	Estimated Time of Arrival: December 31
Solution
10 mM * 1 mL in DMSO	USD 55	In-stock	Estimated Time of Arrival: December 31
Solid
5 mg	USD 50	In-stock	Estimated Time of Arrival: December 31
10 mg	USD 70	In-stock	Estimated Time of Arrival: December 31
50 mg	USD 180	In-stock	Estimated Time of Arrival: December 31
100 mg	USD 280	In-stock	Estimated Time of Arrival: December 31
200 mg		Get quote
500 mg		Get quote

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Biological Activity
Purity & Documentation
References
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Description

Cephalotaxlen ((-)-Cephalotaxine) is an alkaloid that can be isolated from Cephalotaxus fortunei, with antileukemic and antiviral activities. Cephalotaxlen has anti-ZIKV (Zika virus) activity^[1]^[2]^[3].

IC₅₀ & Target

ZIKV^[3]

In Vitro

Cephalotaxine inhibits Zika infection by impeding viral replication and stability^[3].

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

Molecular Weight

315.36

Formula

C₁₈H₂₁NO₄

CAS No.

24316-19-6

Appearance

Solid

Color

White to light yellow

SMILES

O[C@H]1[C@](C(C=C(OCO2)C2=C3)=C3CCN4CCC5)([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	2 years
	-20°C	1 year

Solvent & Solubility

In Vitro:

DMSO : 25 mg/mL (79.27 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	3.1710 mL	15.8549 mL	31.7098 mL
5 mM	0.6342 mL	3.1710 mL	6.3420 mL
10 mM	0.3171 mL	1.5855 mL	3.1710 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

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 (7.93 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 (7.93 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 (7.93 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: 99.21%

Select Batch:

Data Sheet (274 KB) SDS (251 KB)

COA (249 KB) LCMS (92 KB)

Handling Instructions (2659 KB)

References

[1]. Wang DZ, et al. Studies on the alkaloids of Cephalotaxus. IX. Semi-synthesis of cephalotaxine esters and their anti-leukemic activity Yao Xue Xue Bao. 1992;27(3):178-84. [Content Brief]

[2]. Efferth T, et al. Molecular modes of action of cephalotaxine and homoharringtonine from the coniferous tree Cephalotaxus hainanensis in human tumor cell lines. Naunyn Schmiedebergs Arch Pharmacol. 2003 Jan;367(1):56-67. [Content Brief]

[3]. Zheng-Zong Lai, et al. Cephalotaxine inhibits Zika infection by impeding viral replication and stability. Biochem Biophys Res Commun. 2020 Feb 19; 522(4): 1052–1058. [Content Brief]

Complete Stock Solution Preparation Table

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

DMSO	1 mM	3.1710 mL	15.8549 mL	31.7098 mL	79.2745 mL
	5 mM	0.6342 mL	3.1710 mL	6.3420 mL	15.8549 mL
	10 mM	0.3171 mL	1.5855 mL	3.1710 mL	7.9274 mL
	15 mM	0.2114 mL	1.0570 mL	2.1140 mL	5.2850 mL
	20 mM	0.1585 mL	0.7927 mL	1.5855 mL	3.9637 mL
	25 mM	0.1268 mL	0.6342 mL	1.2684 mL	3.1710 mL
	30 mM	0.1057 mL	0.5285 mL	1.0570 mL	2.6425 mL
	40 mM	0.0793 mL	0.3964 mL	0.7927 mL	1.9819 mL
	50 mM	0.0634 mL	0.3171 mL	0.6342 mL	1.5855 mL
	60 mM	0.0528 mL	0.2642 mL	0.5285 mL	1.3212 mL

Cephalotaxine 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:

Cephalotaxine24316-19-6(-)-Cephalotaxine ZINC19795976ZINC19795976ZINC 19795976ZINC-19795976FlavivirusInhibitorinhibitorinhibit

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