Cat. No.: HY-N1919

Ajmalicine

(Synonyms: Raubasine)

2 Cited Publications

Customer Review

Based on 2 publication(s) in Google Scholar

Ajmalicine (Raubasine) is a potent adrenolytic agent which preferentially blocks α₁-adrenoceptor. Ajmalicine is an reversible but non-competitive nicotine receptor full inhibitor, with an IC₅₀ of 72.3 μM. Ajmalicine also can be used as anti-hypertensive, and serpentine, with sedative activity.

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

Purity: 99.23%
CAS No.: 483-04-5
Formula: C₂₁H₂₄N₂O₃
Molecular Weight:352.43

Storage:

Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month

Ajmalicine Chemical Structure

CAS No.: 483-04-5

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Biological Activity
- Description
- IC₅₀ & Target
- In Vitro
- In Vivo
Chemical Information
Publications (2)
Solvent & Solubility
- In Vitro
- In Vivo
Purity & Documentation
References
Help & FAQs
Classifications
Bioz

Biological Activity

Description

IC₅₀ & Target

α1-adrenergic receptor

α2-adrenergic receptor

All Adrenergic Receptor Isoforms :

All Cholinesterase (ChE) Isoforms :

AChE
BChE

In Vitro

Ajmalicine preferentially blocks α₁-adrenoceptor than α₂-adrenoceptor^[1].
Ajmalicine inhibits contractions in a concentration-dependent manner (IC₅₀=72.3 ± 22.5 μM)^[2].
Ajmalicine acts preferentially at postsynaptic sites, competitively antagonizes the effect of noradrenaline on postsynaptic alpha-adrenoceptor with a pA2 value of 6.57, blocks the inhibitory effect of clonidine with an pA2 value of 6.2^[3].

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

In Vivo

Ajmalicine blocking the pressor action of electrical stimulation and is active against sympathetic stimulation^[1].
Ajmalicine (0.5-4 mg/kg) induces a marked dose-dependent inhibition against the pressor response to noradrenaline^[1].

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

Animal Model:

Male Wistar rats (300-350 g)^[1]
Dosage:

0.5, 1, 2, and 4 mg/kg
Administration:

IV, once
Result:

Induced a marked dose-dependent inhibition against the pressor response to noradrenaline.

Chemical Information

CAS No. 483-04-5
Appearance Solid
Molecular Weight 352.43
Formula C₂₁H₂₄N₂O₃
Color Off-white to light yellow
SMILES

O=C(C1=CO[C@@H](C)[C@](CN2CC3)([H])[C@]1([H])C[C@@]2([H])C4=C3C5=CC=CC=C5N4)OC
Synonyms

Raubasine
Structure Classification
- Terpenoids
- Iridoids
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	6 months
	-20°C	1 month

Publications (2)

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Journal Impact Factor

Ind Crops Prod

2025 Aug.
J Biochem Mol Toxicol

Ajmalicine induces the pyroptosis of hepatoma cells to exert the antitumor effect. [Abstract]

2024 Jan;38(1):e23614. PMID: 38064316

Solvent & Solubility

In Vitro:

DMSO : 5.56 mg/mL (15.78 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

View the Complete Stock Solution Preparation Table

Preparing Stock Solutions

View the Complete Stock Solution Preparation Table

Concentration Solvent Mass

1 mg

5 mg

10 mg

Concentration

Solvent

Mass

1 mM

2.8374 mL

14.1872 mL

28.3744 mL

5 mM

0.5675 mL

2.8374 mL

5.6749 mL

10 mM

0.2837 mL

1.4187 mL

2.8374 mL

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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Molarity Calculator

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

Mass Mass

Concentration Concentration

Volume Volume

Molecular Weight Molecular Weight

Dilution Calculator

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

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In Vivo:

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

Stock Solution Working Solution

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: ≥ 0.56 mg/mL (1.59 mM); Clear solution

This protocol yields a clear solution of ≥ 0.56 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (5.6 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.

Protocol 2

Add each solvent one by one: 10% DMSO 90% Corn Oil

Solubility: ≥ 0.56 mg/mL (1.59 mM); Clear solution

This protocol yields a clear solution of ≥ 0.56 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 (5.6 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage Dosage
mg/kg
Animal Weight (Per Animal) Animal Weight (Per Animal)
g
Dosing Volume (Per Animal) Dosing Volume (Per Animal)
μL
Number of Animals Number of Animals

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

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

Please enter your animal formula composition:

%
DMSO +

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
%
+
+
%
Tween-80 + +
%
Saline +

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).

Working solution concentration: 0.22 mg/mL

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (278 KB)
SDS (480 KB)
- English - EN (480 KB)
- Français - FR (480 KB)
- Deutsch - DE (480 KB)
- Norwegian - NO (480 KB)
- Español - ES (480 KB)
- Swedish - SV (480 KB)
- Italian - IT (480 KB)
- Korean - KR (480 KB)
- Portuguese - PT (480 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Handling Instructions (2659 KB)

References

[1]. Roquebert J, et al. Inhibition of the alpha 1 and alpha 2-adrenoceptor-mediated pressor response in pithed rats by raubasine, tetrahydroalstonine and akuammigine. Eur J Pharmacol. 1984 Oct 30;106(1):203-5. [Content Brief]

[2]. Pereira DM, et al. Pharmacological effects of Catharanthus roseus root alkaloids in acetylcholinesterase inhibition and cholinergic neurotransmission. Phytomedicine. 2010 Jul;17(8-9):646-52. [Content Brief]

[3]. Demichel P, et al. Effects of raubasine stereoisomers on pre- and postsynaptic alpha-adrenoceptors in the rat vas deferens. Br J Pharmacol. 1984 Oct;83(2):505-10 [Content Brief]

Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

Complete Stock Solution Preparation Table

Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO	1 mM	2.8374 mL	14.1872 mL	28.3744 mL	70.9361 mL
	5 mM	0.5675 mL	2.8374 mL	5.6749 mL	14.1872 mL
	10 mM	0.2837 mL	1.4187 mL	2.8374 mL	7.0936 mL
	15 mM	0.1892 mL	0.9458 mL	1.8916 mL	4.7291 mL

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Ajmalicine

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Publications Citing Use of MedChemExpress (MCE) Ajmalicine

All Adrenergic Receptor Isoforms

All Cholinesterase (ChE) Isoforms

Biological Activity

Chemical Information

Publications (2)

Solvent & Solubility

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table

Ajmalicine Related Classifications

HY-N1919 Related Classifications