Pyrolaside BCAS# 868632-32-0 |
Quality Control & MSDS
Number of papers citing our products
Chemical structure
| Cas No. | 868632-32-0 | SDF | Download SDF |
| PubChem ID | N/A | Appearance | Powder |
| Formula | C39H50O21 | M.Wt | 854.8 |
| Type of Compound | Phenols | 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. | ||
Pyrolaside B Dilution Calculator
Pyrolaside B Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 1.1699 mL | 5.8493 mL | 11.6986 mL | 23.3973 mL | 29.2466 mL |
| 5 mM | 0.234 mL | 1.1699 mL | 2.3397 mL | 4.6795 mL | 5.8493 mL |
| 10 mM | 0.117 mL | 0.5849 mL | 1.1699 mL | 2.3397 mL | 2.9247 mL |
| 50 mM | 0.0234 mL | 0.117 mL | 0.234 mL | 0.4679 mL | 0.5849 mL |
| 100 mM | 0.0117 mL | 0.0585 mL | 0.117 mL | 0.234 mL | 0.2925 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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Total Synthesis of Pyrolaside B: Phenol Trimerization through Sequenced Oxidative C-C and C-O Coupling.[Pubmed:32026544]
Angew Chem Int Ed Engl. 2020 May 11;59(20):7842-7847.
A facile method to oxidatively trimerize phenols using a catalytic aerobic copper system is described. The mechanism of this transformation was probed, yielding insight that enabled cross-coupling trimerizations. With this method, the natural product Pyrolaside B was synthesized for the first time. The key strategy used for this novel synthesis is the facile one-step construction of a spiroketal trimer intermediate, which can be selectively reduced to give the natural product framework without recourse to stepwise Ullmann- and Suzuki-type couplings. As a result, Pyrolaside B can be obtained expeditiously in five steps and 16 % overall yield. Three other analogues were synthesized, thus highlighting the utility of the method, which provides new accessibility to this area of chemical space. A novel xanthene was also synthesized through controlled Lewis acid promoted rearrangement of a spiroketal trimer.
Novel phenolic glycoside dimer and trimer from the whole herb of Pyrola rotundifolia.[Pubmed:16079548]
Chem Pharm Bull (Tokyo). 2005 Aug;53(8):1051-3.
From the water-soluble constituents of the whole herb of Pyrola rotundifolia (Pyrolaceae), one novel phenolic glycoside dimer, pyrolaside A (1), and one novel phenolic glycoside trimer, Pyrolaside B (2), together with two known phenolic glycosides homoarbutin (3) and isohomoarbutin (4), were isolated. The structures were elucidated by spectroscopic analysis and confirmed with chemical degradation. In vitro tests for antimicrobial activity showed Pyrolaside B (2) to possess significant activity against two Gram-positive organisms, Staphylococcus aureus and Micrococcus luteus.
