Peucedanocoumarin IICAS# 130464-56-1 |
- Peucedanocoumarin III
Catalog No.:BCN3471
CAS No.:130464-57-2
- (+)-Pteryxin
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Quality Control & MSDS
Number of papers citing our products
Chemical structure
3D structure
| Cas No. | 130464-56-1 | SDF | Download SDF |
| PubChem ID | 5434471 | Appearance | Cryst. |
| Formula | C21H22O7 | M.Wt | 386.4 |
| Type of Compound | Coumarins | Storage | Desiccate at -20°C |
| Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
| Chemical Name | [(9S,10R)-9-acetyloxy-8,8-dimethyl-2-oxo-9,10-dihydropyrano[2,3-f]chromen-10-yl] (Z)-2-methylbut-2-enoate | ||
| SMILES | CC=C(C)C(=O)OC1C(C(OC2=C1C3=C(C=C2)C=CC(=O)O3)(C)C)OC(=O)C | ||
| Standard InChIKey | LYUZYPKZQDYMEE-JZWAJAMXSA-N | ||
| Standard InChI | InChI=1S/C21H22O7/c1-6-11(2)20(24)27-18-16-14(28-21(4,5)19(18)25-12(3)22)9-7-13-8-10-15(23)26-17(13)16/h6-10,18-19H,1-5H3/b11-6-/t18-,19+/m1/s1 | ||
| 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. | ||
| Description | 1. Peucedanocoumarin II shows only partial relaxation. |
Peucedanocoumarin II Dilution Calculator
Peucedanocoumarin II Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 2.588 mL | 12.94 mL | 25.8799 mL | 51.7598 mL | 64.6998 mL |
| 5 mM | 0.5176 mL | 2.588 mL | 5.176 mL | 10.352 mL | 12.94 mL |
| 10 mM | 0.2588 mL | 1.294 mL | 2.588 mL | 5.176 mL | 6.47 mL |
| 50 mM | 0.0518 mL | 0.2588 mL | 0.5176 mL | 1.0352 mL | 1.294 mL |
| 100 mM | 0.0259 mL | 0.1294 mL | 0.2588 mL | 0.5176 mL | 0.647 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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Relaxant effects of pyranocoumarin compounds isolated from a Chinese medical plant, Bai-Hua Qian-Hu, on isolated rabbit tracheas and pulmonary arteries.[Pubmed:10513627]
Biol Pharm Bull. 1999 Sep;22(9):984-7.
Qian-Hu is a well-known traditional Chinese medicine used for the treatment of respiratory diseases and pulmonary hypertension. We compared the relaxant effects of pyranocoumarin compounds, including (+)-praeruptorin A (Pra-C), Pd-Ia (=(+/-)-praeruptorin A), pteryxin, Peucedanocoumarin II (P-II) and 8-methoxy-psoralen (8-MOP) purified from Bai-Hua Qian-Hu (BQ) in isolated rabbit tracheas and pulmonary arteries. Pra-C, pteryxin and Pd-Ia produced significant relaxant effects in tracheal preparations constricted with 40 mM KCl or 10 microM acetylcholine. The relaxant response to Pra-C, pteryxin or Pd-Ia in preparations constricted with KCl was significantly more potent than that in preparations constricted with acetylcholine. Pra-C, pteryxin or Pd-Ia at a concentration of 30 microM completely relaxed tracheas constricted with 40 mM KCl, whereas P-II at the same concentration showed only partial relaxation. In pulmonary arterial preparations, 8-MOP produced a significant relaxant effect on contractions by 10 microM phenylephrine, without any effect on the contraction by 40 mM KCl. These results suggest that Pd-Ia, pteryxin and Pra-C for their calcium antagonistic action, and 8-MOP for its inhibitory effect on contraction induced by phenylephrine, may be the active principles of BQ for relaxing the smooth muscle of tracheas and pulmonary arteries, and the principle may produce a synergistic effect.
