4,7-Didehydroneophysalin BCAS# 134461-76-0 |
Quality Control & MSDS
Package In Stock
Number of papers citing our products
| Cas No. | 134461-76-0 | SDF | Download SDF |
| PubChem ID | N/A | Appearance | Powder |
| Formula | C28H28O9 | M.Wt | 508.5 |
| Type of Compound | Steroids | Storage | Desiccate at -20°C |
| 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. We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months. Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it. |
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| About Packaging | 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial. 2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial. 3. Try to avoid loss or contamination during the experiment. |
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| Shipping Condition | Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request. | ||
4,7-Didehydroneophysalin B Dilution Calculator
4,7-Didehydroneophysalin B Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 1.9666 mL | 9.8328 mL | 19.6657 mL | 39.3314 mL | 49.1642 mL |
| 5 mM | 0.3933 mL | 1.9666 mL | 3.9331 mL | 7.8663 mL | 9.8328 mL |
| 10 mM | 0.1967 mL | 0.9833 mL | 1.9666 mL | 3.9331 mL | 4.9164 mL |
| 50 mM | 0.0393 mL | 0.1967 mL | 0.3933 mL | 0.7866 mL | 0.9833 mL |
| 100 mM | 0.0197 mL | 0.0983 mL | 0.1967 mL | 0.3933 mL | 0.4916 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. | |||||
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Simultaneous pharmacokinetics and stability studies of physalins in rat plasma and intestinal bacteria culture media using liquid chromatography with mass spectrometry.[Pubmed:29331063]
J Sep Sci. 2018 Apr;41(8):1781-1790.
Physalins are the major steroidal constituent of Physalis plants and display a range of biological activities. For this study, a rapid and sensitive high-performance liquid chromatography with triple quadrupole mass spectrometry method was developed for the simultaneous quantification of six physalins. Specifically, it was for the quantification of physalin A, physalin B, physalin D, physalin G, 4,7-Didehydroneophysalin B, and isophysalin B in rat plasma and rat intestinal bacteria. After a solid-phase extraction, analytes and internal standards (prednisolone) were separated on a Shield reverse-phase C18 column (measuring 3 mm x 150 mm with an internal diameter of 3.5 mum) and determined using multiple reactions in a monitoring mode with a positive-ion electrospray ionization source. The mobile phase was a mixture of 0.1% formic acid in water (A) and acetonitrile (B) and was used at a flow rate of 0.6 mL/min. The intra- and interday precisions were within 15% with accuracies ranging from 86.2 to 114%. The method was validated and successfully applied to pharmacokinetics and stability studies of six physalins in rat plasma and rat intestinal bacteria, respectively. The results showed that physalin B and isophysalin B could not be absorbed by rats, and rat intestinal bacteria could quickly transform physalins.
Quantitative and transformation product analysis of major active physalins from Physalis alkekengi var. franchetii (Chinese lantern) using ultraperformance liquid chromatography with electrospray ionisation tandem mass spectrometry and time-of-flight mass spectrometry.[Pubmed:21997776]
Phytochem Anal. 2012 Jul-Aug;23(4):337-44.
INTRODUCTION: Chinese lantern is the calyx or calyx-with-fruit of the plant Physalis alkekengi .var. franchetii (Solanaceae), and is potential material for the food and pharmaceutical industries. Physalins are the most active and representative secondary metabolites of Chinese lantern. A separation and quantification method based on UPLC-ESI-MS/MS was developed for the quantitative analysis of five active physalins. The transformation products were also detected and identified for the first time. OBJECTIVE: To establish a LC-MS/MS method to quantify five physalins in Chinese lantern for the purpose of quality control, and to identify the transformation products of 4,7-didehydrophysalin B. METHODOLOGY: The separation was carried out on an Acquity UPLC BEH Shield RP C(1)(8)-column with water and acetonitrile as the mobile phase under gradient conditions. ESI-MS/MS was used as the detector to quantify the five physalins. The transformation products of 4,7-Didehydroneophysalin B were detected by UPLC-PDA-ESI-MS/MS and identified through comparing their HRMS and MS(2) ion fragmentations with corresponding references. RESULTS: All the compounds showed good linearity (R(2) > 0.998). The recoveries, measured at three concentration levels, varied from 98.8 to 101.4% with RSDs < 4.5%. The total contents of the five physalins in Chinese lantern varied significantly. Three transformation products of 4,7-Didehydroneophysalin B were detected and tentatively identified. CONCLUSION: The present study developed a highly effective analytical method for the quality control of Chinese lantern, and it could provide comprehensive information for quality evaluation and new drug development of Chinese lantern.
An ultra-pressure liquid chromatography-tandem mass spectrometry method for the simultaneous determination of three physalins in rat plasma and its application to pharmacokinetic study of Physalis alkekengi var. franchetii (Chinese lantern) in rats.[Pubmed:21996065]
J Pharm Biomed Anal. 2012 Jan 25;58:94-101.
An ultra-high pressure liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was developed for the quantification of three major ingredients in Chinese lantern preparations (CLP) in rat plasma. Following extraction by ethyl acetate, the analytes were separated on an Acquity UPLC BEH Shield RP C(18) column using a gradient mobile phase system of acetonitrile-water. Electrospray ionization (ESI) tandem interface was employed prior to mass spectrometric detection. The calibration curves were linear over the range of 5.0-500.0 ng/ml for physalin D, 2.3-230.0 ng/ml for physalin G and 0.71-71.0 ng/ml for 4,7-Didehydroneophysalin B. The average extraction recoveries, examined at four concentration levels, carried from 57.1% to 76.9%, and the accuracies ranged from 94.0% to 113.3% with precision (RSD) <15%. The validated method was successfully applied to the determination of the three physalins in rat plasma after intragastric administration of CLP suspension.
