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Protopine hydrochloride
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Product Name Protopine hydrochloride
Price: $122 / 20mg
CAS No.: 6164-47-2
Catalog No.: CFN98520
Molecular Formula: C20H20ClNO5
Molecular Weight: 389.83 g/mol
Purity: >=98%
Type of Compound: Alkaloids
Physical Desc.: Powder
Source: The herbs of Galium aparine L.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download: COA    MSDS    SDF    Manual
Similar structural: Comparison
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According to end customer requirements, ChemFaces provide solvent format. This solvent format of product intended use: Signaling Inhibitors, Biological activities or Pharmacological activities.
Size /Price /Stock 10 mM * 1 mL in DMSO / $43.8 / In-stock
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Related Screening Libraries
Size /Price /Stock 10 mM * 100 uL in DMSO / Inquiry / In-stock
10 mM * 1 mL in DMSO / Inquiry / In-stock
Related Libraries
Biological Activity
Description: Protopine has antiplatelet effects,which is due to inhibition on thromboxane formation and phosphoinositides breakdown and then lead to the decrease of intracellular calcium concentration.Protopine seems to inhibit the heterotypic cell adhesion between MDA-MB-231 cells, and human umbilical vein endothelial cells by changing the expression of adhesive factors.
Targets: EGFR | cAMP
In vitro:
Afr. J.Tradit. Complem., 2014, 11(2):415-24.
Protopine inhibits heterotypic cell adhesion in MDA-MB-231 cells through down-regulation of multi-adhesive factors.[Pubmed: 25435628 ]
A Chinese herb Corydalis yanhusuo W.T. Wang that showed anticancer and anti-angiogenesis effects in our previous studies was presented for further studies. In the present study, we studied the anticancer proliferation and adhesion effects of five alkaloids which were isolated from Corydalis yanhusuo.
METHODS AND RESULTS:
MTT dose response curves, cell migration assay, cell invasion assay, as well as three types of cell adhesive assay were performed on MDA-MB-231 human breast cancer cells. The mechanism of the compounds on inhibiting heterotypic cell adhesion were further explored by determining the expression of epidermal growth factor receptor (EGFR), Intercellular adhesion molecule 1 (ICAM-1), αv-integrin, β1-integrin and β5-integrin by western blotting assay. In five tested alkaloids, only protopine exhibited anti-adhesive and anti-invasion effects in MDA-MB-231 cells, which contributed to the anti-metastasis effect of Corydalis yanhusuo. The results showed that after treatment with protopine for 90 min, the expression of EGFR, ICAM-1, αv-integrin, β1-integrin and β5-integrin were remarkably reduced.
CONCLUSIONS:
The present results suggest that protopine seems to inhibit the heterotypic cell adhesion between MDA-MB-231 cells, and human umbilical vein endothelial cells by changing the expression of adhesive factors.
Thromb Res. 1989 Oct 15;56(2):289-98.
Antiplatelet effects of protopine isolated from Corydalis tubers.[Pubmed: 2559491]

METHODS AND RESULTS:
Protopine inhibited the aggregation and ATP release of rabbit platelets induced by ADP, arachidonic acid, PAF, collagen and ionophore A23187. Although the platelet aggregation caused by thrombin was not inhibited by protopine (100 micrograms/ml), the release reaction was partially suppressed. In rabbit platelet-rich plasma, protopine also inhibited the platelet aggregation caused by ADP, arachidonic acid, PAF and collagen. The thromboxane B2 formation of washed platelets caused by arachidonic acid, collagen, ionophore A23187 and thrombin was suppressed by protopine. Protopine inhibited the intracellular calcium increase caused by arachidonic acid in quin-2/AM loaded rabbit platelets. In the presence of indomethacin, the intracellular calcium increase caused by collagen and PAF was completely suppressed by protopine, and the intracellular calcium increase caused by thrombin was partially inhibited. The phosphoinositides breakdown caused by collagen and PAF was inhibited by protopine, but that by thrombin was not affected significantly. Protopine did not cause the elevation of cyclic AMP level of platelets.
CONCLUSIONS:
It is concluded that the antiplatelet effects of protopine is due to inhibition on thromboxane formation and phosphoinositides breakdown and then lead to the decrease of intracellular calcium concentration.
Protopine hydrochloride Description
Source: The herbs of Galium aparine L.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Storage: Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

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After receiving: The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Recently, ChemFaces products have been cited in many studies from excellent and top scientific journals

Cell. 2018 Jan 11;172(1-2):249-261.e12.
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Calculate Dilution Ratios(Only for Reference)
1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.5652 mL 12.8261 mL 25.6522 mL 51.3044 mL 64.1305 mL
5 mM 0.513 mL 2.5652 mL 5.1304 mL 10.2609 mL 12.8261 mL
10 mM 0.2565 mL 1.2826 mL 2.5652 mL 5.1304 mL 6.4131 mL
50 mM 0.0513 mL 0.2565 mL 0.513 mL 1.0261 mL 1.2826 mL
100 mM 0.0257 mL 0.1283 mL 0.2565 mL 0.513 mL 0.6413 mL
* Note: If you are in the process of experiment, it's need to make the dilution ratios of the samples. The dilution data of the sheet for your reference. Normally, it's can get a better solubility within lower of Concentrations.
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