Cat. No.: HY-N0793

Protopine

(Synonyms: Corydinine)

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Based on 1 Customer Validation

Protopine (Corydinine), an isoquinoline alkaloid, is a specific reversible and competitive inhibitor of acetylcholinesterase. Protopine exhibits anti-inflammation, anti-microbial, anti-angiogenic and anti-tumour activity.

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

Purity: 99.81%
CAS No.: 130-86-9
Formula: C₂₀H₁₉NO₅
Molecular Weight:353.37

Storage:

Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year

Protopine Chemical Structure

CAS No.: 130-86-9

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Fluorescent Dye

Strong Fluorescence Signal / Multi-Disciplinary Applications / High Fluorescence Specificity

Biological Activity
- Description
- Cellular Effect
- In Vitro
- In Vivo
Chemical Information
Solvent & Solubility
- In Vitro
- In Vivo
Purity & Documentation
References
Help & FAQs
Classifications
Bioz

Biological Activity

Description

All Cholinesterase (ChE) Isoforms :

AChE
BChE

Cellular Effect

Cell Line	Type	Value	Description	References
GES1	IC₅₀	>150 μM Compound: 10	Antiproliferative activity against human GES1 cells assessed as reduction in cell viability after 24 hrs by MTT assay Antiproliferative activity against human GES1 cells assessed as reduction in cell viability after 24 hrs by MTT assay	[PMID: 35286954]
HGC-27	IC₅₀	121.3 μM Compound: 10	Antiproliferative activity against human HGC-27 cells assessed as reduction in cell viability after 24 hrs by MTT assay Antiproliferative activity against human HGC-27 cells assessed as reduction in cell viability after 24 hrs by MTT assay	[PMID: 35286954]
MGC-803	IC₅₀	94.5 μM Compound: 10	Antiproliferative activity against human MGC-803 cells assessed as reduction in cell viability after 24 hrs by MTT assay Antiproliferative activity against human MGC-803 cells assessed as reduction in cell viability after 24 hrs by MTT assay	[PMID: 35286954]

In Vitro

Protopine (10-40 μM, 24 h-96 h) inhibits cell viability, migration, invasion and EMT process of liver carcinoma cells (HepG2, Huh7)^[2].
Protopine (10-40 μM, 24 h) induces apoptosis by increasing the expression of caspase-3 and caspase-9 in HepG2 and Huh7 cells, and inhibits the PI3K/Akt signaling pathway^[2].
Protopine (10-40 μM, 6 h) induces generation of ROS in HepG2 and Huh7 cells^[2].
Protopine (0-10 μg/mL) inhibits the uptake of serotonin transporter (SERT) in S6 cells and noradrenaline (NE) uptake in N1 cells^[3].

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

Western Blot AnalysisWB^[2]

Cell Line:

HepG2, Huh7
Concentration:

10, 20, 40 μM
Incubation Time:

24 h
Result:

Induced the cleavage of caspase-3 and caspase-9.
Decreased Bcl-2 and Bcl-xl level.
Induced the release of mitochondrial protein cytochrome c into the cytosol.

In Vivo

Protopine (0.1 and 1 mg/kg, i.p.) alleviates Scopolamine (HY-N0296) (1 mg/kg)-induced memory impairment in mice^[1].
Protopine (5-20 mg/kg, i.v.) inhibits tumor growth and inhibits PI3K/Akt, and induces cleavage of caspase-3 in xenograft BALB/c mice (s.c. with HepG2 or Huh-7 cells)^[2].
Protopine (5-20 mg/kg, i.p.) shows antidepressant-like effect in mice HTR and TST tests^[3].
Protopine (1-4 mg/kg, i.p., once daily for 3 days) shows protective effect on the focal cerebral ischaemic induced injury in rats^[4].

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

Animal Model:

5-hydroxy-DL-tryptophan (5-HTP)-induced mice model^[3]
Dosage:

5, 10, 20 mg/kg
Administration:

i.p.
Result:

Increased the number of 5-HTP-induced head twitch response (HTR).
Decreased the immobility time tested in the Tail suspension test (TST).

Chemical Information

CAS No. 130-86-9
Appearance Solid
Molecular Weight 353.37
Formula C₂₀H₁₉NO₅
Color White to off-white
SMILES

O=C1CC2=CC=C3C(OCO3)=C2CN(C)CCC4=CC5=C(OCO5)C=C41
Synonyms

Corydinine
Structure Classification
- Alkaloids
- Isoquinoline Alkaloids
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 : 12.5 mg/mL (35.37 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

2.8299 mL

14.1495 mL

28.2990 mL

5 mM

0.5660 mL

2.8299 mL

5.6598 mL

10 mM

0.2830 mL

1.4149 mL

2.8299 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, 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

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)

Concentration _(start) Concentration _(start)

Volume _(start) Volume _(start)

Concentration _(final) Concentration _(final)

Volume _(final) Volume _(final)

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: ≥ 1.47 mg/mL (4.16 mM); Clear solution

This protocol yields a clear solution of ≥ 1.47 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (14.7 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% (20% SBE-β-CD in Saline)

Solubility: ≥ 1.25 mg/mL (3.54 mM); Clear solution

This protocol yields a clear solution of ≥ 1.25 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (12.5 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

Protocol 3

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

Solubility: ≥ 1.25 mg/mL (3.54 mM); Clear solution

This protocol yields a clear solution of ≥ 1.25 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 (12.5 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 (276 KB)
SDS (479 KB)
- English - EN (479 KB)
- Français - FR (479 KB)
- Deutsch - DE (479 KB)
- Norwegian - NO (479 KB)
- Español - ES (479 KB)
- Swedish - SV (479 KB)
- Italian - IT (479 KB)
- Korean - KR (479 KB)
- Portuguese - PT (479 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]. Kim SR, et, al. Protopine from Corydalis ternata has anticholinesterase and antiamnesic activities. Planta Med. 1999 Apr;65(3):218-21. [Content Brief]

[2]. Nie C, et, al. Protopine triggers apoptosis via the intrinsic pathway and regulation of ROS/PI3K/Akt signalling pathway in liver carcinoma. Cancer Cell Int. 2021 Jul 27;21(1):396. [Content Brief]

[3]. Xu LF, et al. Protopine inhibits serotonin transporter and noradrenaline transporter and has the antidepressant-like effect in mice models. Neuropharmacology. 2006 Jun;50(8):934-40. [Content Brief]

[4]. Xiao X, et al. Protective effect of protopine on the focal cerebral ischaemic injury in rats. Basic Clin Pharmacol Toxicol. 2007 Aug;101(2):85-9. [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, 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.

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO	1 mM	2.8299 mL	14.1495 mL	28.2990 mL	70.7474 mL
	5 mM	0.5660 mL	2.8299 mL	5.6598 mL	14.1495 mL
	10 mM	0.2830 mL	1.4149 mL	2.8299 mL	7.0747 mL
	15 mM	0.1887 mL	0.9433 mL	1.8866 mL	4.7165 mL
	20 mM	0.1415 mL	0.7075 mL	1.4149 mL	3.5374 mL
	25 mM	0.1132 mL	0.5660 mL	1.1320 mL	2.8299 mL
	30 mM	0.0943 mL	0.4716 mL	0.9433 mL	2.3582 mL

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Protopine

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All Cholinesterase (ChE) Isoforms

Biological Activity

Chemical Information

Solvent & Solubility

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table

Protopine Related Classifications

HY-N0793 Related Classifications