Denudatin BCAS# 87402-88-8 |
- Kadsurenone
Catalog No.:BCX1157
CAS No.:95851-37-9
Quality Control & MSDS
Number of papers citing our products
Chemical structure
3D structure
| Cas No. | 87402-88-8 | SDF | Download SDF |
| PubChem ID | 442834 | Appearance | Powder |
| Formula | C21H24O5 | M.Wt | 356.42 |
| Type of Compound | Lignans | Storage | Desiccate at -20°C |
| Solubility | Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc. | ||
| Chemical Name | (2S,3R,3aR)-2-(3,4-dimethoxyphenyl)-3a-methoxy-3-methyl-5-prop-2-enyl-2,3-dihydro-1-benzofuran-6-one | ||
| SMILES | CC1C(OC2=CC(=O)C(=CC12OC)CC=C)C3=CC(=C(C=C3)OC)OC | ||
| Standard InChIKey | VDYACOATPFOZIO-HBUDHLSFSA-N | ||
| Standard InChI | InChI=1S/C21H24O5/c1-6-7-15-12-21(25-5)13(2)20(26-19(21)11-16(15)22)14-8-9-17(23-3)18(10-14)24-4/h6,8-13,20H,1,7H2,2-5H3/t13-,20+,21-/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. Denudatin B inhibits the aggregation and ATP release of washed rabbit platelets caused by platelet-activating factor (PAF) in a concentration-dependent manner. 2. Denudatin B has nonspecific antiplatelet action at high concentration by inhibiting phosphoinositides breakdown induced by collagen and thrombin. 3. Denudatin B relaxes vascular smooth muscle by inhibiting the Ca2+ influx through voltage-gated and receptor-operated Ca2+ channels; its effect to increase cGMP may enhance the vasorelaxation. 4. Denudatin B shows potent 2, 2’-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) radical scavenging activity. |
| Targets | Calcium Channel | ATPase | Potassium Channel | PAFR |
Denudatin B Dilution Calculator
Denudatin B Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 2.8057 mL | 14.0284 mL | 28.0568 mL | 56.1136 mL | 70.142 mL |
| 5 mM | 0.5611 mL | 2.8057 mL | 5.6114 mL | 11.2227 mL | 14.0284 mL |
| 10 mM | 0.2806 mL | 1.4028 mL | 2.8057 mL | 5.6114 mL | 7.0142 mL |
| 50 mM | 0.0561 mL | 0.2806 mL | 0.5611 mL | 1.1223 mL | 1.4028 mL |
| 100 mM | 0.0281 mL | 0.1403 mL | 0.2806 mL | 0.5611 mL | 0.7014 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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Inhibition of thrombin- and collagen-induced phosphoinositides breakdown in rabbit platelets by a PAF antagonist--denudatin B, an isomer of kadsurenone.[Pubmed:2169076]
Thromb Res. 1990 Jul 1;59(1):121-30.
Denudatin B, an isomer of kadsurenone, was isolated from Magnolia fargesii. It inhibited the aggregation and ATP release of washed rabbit platelets caused by platelet-activating factor (PAF) in a concentration-dependent manner. The IC50 on PAF (2 ng/ml)-induced aggregation was about 10 micrograms/ml. High concentration of Denudatin B (greater than 50 micrograms/ml) also inhibited the aggregation and ATP release of platelets caused by ADP, collagen, arachidonic acid and thrombin. However, shape change of platelets still existed. Prolongation of the incubation time with platelets could not cause further inhibition, and the aggregability of platelets could be restored after Denudatin B was washed out from platelets. Thrombin-induced thromboxane B2 formation was almost completely suppressed. In the absence of extracellular calcium (EGTA 1 mM), ATP release caused by thrombin was inhibited. Thrombin-induced rise of the intracellular calcium concentration was suppressed by Denudatin B, but not by BN52021 or kadsurenone. The generation of inositol phosphate in washed platelets caused by collagen, PAF and thrombin was also suppressed. The data indicate that PAF antagonist Denudatin B has nonspecific antiplatelet action at high concentration by inhibiting phosphoinositides breakdown induced by collagen and thrombin.
New free radical scavenging neolignans from fruits of Piper attenuatum.[Pubmed:25829760]
Pharmacogn Mag. 2015 Apr-Jun;11(42):235-41.
OBJECTIVE: The aim was to study and identify free radicals scavenging and antihyperglycemic principles in fruit of Piper attenuatum. MATERIALS AND METHODS: Bioassay guided identification of extracts possessing potent free radical scavenging activity, and isolation of compounds was done. Chloroform extract of P. attenuatum possessing potent radical scavenging activity was also evaluated for antihyperglycemic activity following oral glucose tolerance test in rats. RESULTS: Nine neolignans namely, Denudatin B (1), iso-4', 5'-dimethoxy-3, 4-methylenedioxy-2'-oxo-Delta(3',5',8')-8.1'-lignan (2), lancifolin D (3), denudatin A (4), wallichinin (5), piperenone (6), lancifolin C (7), 2-oxo-piperol B (8), piperkadsin A (9) and a crotepoxide (10) was identified in Chloroform extract of P. attenuatum. Neolignans (1-9) displayed potent 2, 2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) radical and piperkadsin A (9) also displayed 1, 1-diphenyl-2-picrylhydrazyl radical scavenging activity. Analysis of structure-activity relationship revealed that presence of furan ring and methoxy groups is an important criterion to influence 2, 2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) radical scavenging potentials. Chloroform extract of P. attenuatum fruit could not display antihyperglycemic activity following oral glucose tolerance test in rats. CONCLUSION: Neolignans present in P. attenuatum fruits are potent free radical scavengers and this is the first report identifying these compounds and activities in this fruit.
Vasorelaxing effect in rat thoracic aorta caused by denudatin B, isolated from the Chinese herb, magnolia fargesii.[Pubmed:2176980]
Eur J Pharmacol. 1990 Oct 2;187(1):39-47.
Denudatin B is an antiplatelet agent isolated from the flower buds of Magnolia fargesii. We studied the effects of Denudatin B on the vasoconstriction of rat thoracic aorta induced by high potassium (K+) solution, norepinephrine (NE) and caffeine, and to elucidate its mode of action. The contraction of rat aorta caused by high K+ (60 mM) and cumulative concentrations of CaCl2 (0.03-3 mM) was inhibited concentration dependently by Denudatin B with an IC50 of 21.2 micrograms/ml. NE (3 microM)-induced phasic and tonic contractions of rat aorta were inhibited by pretreatment with Denudatin B (10-100 micrograms/ml). The relaxing action of Denudatin B persisted in denuded aorta, in Ca2(+)-free and EGTA (2 mM)-containing medium. The vasorelaxing effects were not affected by indomethacin (20 microM), hemoglobin (10 microM) or methylene blue (50 microM) and were not accompanied by PGI2 formation. In quin-2/AM-loaded cultured rat vascular smooth muscle cells, Denudatin B (100 micrograms/ml) inhibited the increase of intracellular calcium caused by NE (3 microM) in the presence or absence of extracellular calcium. Denudatin B did not affect the caffeine (10 mM)-induced contraction and the increase in intracellular calcium. Denudatin B (100 micrograms/ml) increased the cGMP, but not the cAMP level in intact and denuded aorta. The 45Ca2+ influx induced in rat aorta by high K+ (60 mM) or NE (3 microM) was markedly inhibited by Denudatin B in a concentration-dependent manner. These results indicate that Denudatin B relaxed vascular smooth muscle by inhibiting the Ca2+ influx through voltage-gated and receptor-operated Ca2+ channels; its effect to increase cGMP may enhance the vasorelaxation.
