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(R)-(+)-Corypalmine

(R)-(+)-Corypalmine

Catalog No. BCN2289
Size Price Stock
20mg $178 In stock
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Quality Control of (R)-(+)-Corypalmine

Chemical structure

(R)-(+)-Corypalmine

Biological Activity of (R)-(+)-Corypalmine

1. (R)-(+)-Corypalmine shows strong papaverine-like activity.

(R)-(+)-Corypalmine Dilution Calculator

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(R)-(+)-Corypalmine Molarity Calculator

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Chemical Properties of (R)-(+)-Corypalmine

Cas No. 13063-54-2 SDF Download SDF
Chemical Name 2,9,10-trimethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinolin-3-ol
SMILES COc1ccc2c(c1OC)CN3CCc4cc(c(cc4[C@H]3C2)OC)O
Standard InChIKey BMCZTYDZHNTKPR-MRXNPFEDSA-N
Standard InChI InChI=1S/C20H23NO4/c1-23-18-5-4-12-8-16-14-10-19(24-2)17(22)9-13(14)6-7-21(16)11-15(12)20(18)25-3/h4-5,9-10,16,22H,6-8,11H2,1-3H3/t16-/m1/s1
Type of Compound Alkaloids Appearance Powder
Formula C20H23NO4 M.Wt 341.40
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other courier with RT , or blue ice upon request.

Preparing Stock Solutions of (R)-(+)-Corypalmine

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.9291 mL 14.6456 mL 29.2912 mL 58.5823 mL 73.2279 mL
5 mM 0.5858 mL 2.9291 mL 5.8582 mL 11.7165 mL 14.6456 mL
10 mM 0.2929 mL 1.4646 mL 2.9291 mL 5.8582 mL 7.3228 mL
50 mM 0.0586 mL 0.2929 mL 0.5858 mL 1.1716 mL 1.4646 mL
100 mM 0.0293 mL 0.1465 mL 0.2929 mL 0.5858 mL 0.7323 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

Preparation of (R)-(+)-Corypalmine

This product is isolated and purified from the roots of Coptis chinensis Franch.

References on (R)-(+)-Corypalmine

Development and validation of a high performance liquid chromatography quantification method of levo-tetrahydropalmatine and its metabolites in plasma and brain tissues: application to a pharmacokinetic study.[Pubmed: 27606501]


Levo-tetrahydropalmatine (l-THP) is an alkaloid isolated from Chinese medicinal herbs of the Corydalis and Stephania genera. It has been used in China for more than 40 years mainly as an analgesic with sedative/hypnotic effects. Despite its extensive use, its metabolism has not been quantitatively studied, nor there a sensitive reliable bioanalytical method for its quantification simultaneously with its metabolites. As such, the objective of this study was to develop and validate a sensitive and selective HPLC method for simultaneous quantification of l-THP and its desmethyl metabolites l-corydalmine (l-CD) and l-corypalmine (l-CP) in rat plasma and brain tissues. Rat plasma and brain samples were processed by liquid-liquid extraction using ethyl acetate. Chromatographic separation was achieved on a reversed-phase Symmetry® C18 column (4.6 × 150 mm, 5 μm) at 25°C. The mobile phase consisted of acetonitrile-methanol-10 mm ammonium phosphate (pH 3) (10:30:60, v/v) and was used at a flow rate of 0.8 mL/min. The column eluent was monitored at excitation and emission wavelengths of 230 and 315 nm, respectively. The calibration curves were linear over the concentration range of 1-10,000 ng/mL. The intra- and interday reproducibility studies demonstrated accuracy and precision within the acceptance criteria of bioanalytical guidelines. The validated HPLC method was successfully applied to analyze samples from a pharmacokinetic study of l-THP in rats. Taken together, the developed method can be applied for bioanalysis of l-THP and its metabolites in rodents and potentially can be transferred for bioanalysis of human samples.



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