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3-Hydroxy-9,10-Dimethoxypterocarpan

CAS# 73340-41-7

3-Hydroxy-9,10-Dimethoxypterocarpan

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3-Hydroxy-9,10-Dimethoxypterocarpan

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Chemical Properties of 3-Hydroxy-9,10-Dimethoxypterocarpan

Cas No. 73340-41-7 SDF Download SDF
PubChem ID 14077830 Appearance Powder
Formula C17H16O5 M.Wt 300.3
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
Chemical Name (6aR,11aR)-9,10-dimethoxy-6a,11a-dihydro-6H-[1]benzofuro[3,2-c]chromen-3-ol
SMILES COC1=C(C2=C(C=C1)C3COC4=C(C3O2)C=CC(=C4)O)OC
Standard InChIKey UOVGCLXUTLXAEC-WFASDCNBSA-N
Standard InChI InChI=1S/C17H16O5/c1-19-13-6-5-10-12-8-21-14-7-9(18)3-4-11(14)15(12)22-16(10)17(13)20-2/h3-7,12,15,18H,8H2,1-2H3/t12-,15-/m0/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.
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.
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.

3-Hydroxy-9,10-Dimethoxypterocarpan Dilution Calculator

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Preparing Stock Solutions of 3-Hydroxy-9,10-Dimethoxypterocarpan

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 3.33 mL 16.65 mL 33.3 mL 66.6001 mL 83.2501 mL
5 mM 0.666 mL 3.33 mL 6.66 mL 13.32 mL 16.65 mL
10 mM 0.333 mL 1.665 mL 3.33 mL 6.66 mL 8.325 mL
50 mM 0.0666 mL 0.333 mL 0.666 mL 1.332 mL 1.665 mL
100 mM 0.0333 mL 0.1665 mL 0.333 mL 0.666 mL 0.8325 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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References on 3-Hydroxy-9,10-Dimethoxypterocarpan

Absorptive constituents and their metabolites in drug-containing urine samples from Wuzhishan miniature pigs orally administered with Buyang Huanwu decoction.[Pubmed:23516044]

J Nat Med. 2014 Jan;68(1):11-21.

Buyang Huanwu decoction (BYHWD), a famous traditional Chinese medicine prescription for the treatment of cerebrovascular diseases, is composed of seven commonly used Chinese herbs--Astragali Radix, Angelicae Sinensis Radix, Paeoniae Radix Rubra, Chuanxiong Rhizoma, Carthami Flos, Persicae Semen and Pheretima. To determine the main absorptive constituents and the metabolites of BYHWD in vivo, urine samples from Wuzhishan (WZS) miniature pigs orally administered with BYHWD (13.6 g crude drugs/kg) were collected to investigate the characteristic compounds. By comparing the high-performance liquid chromatography of a drug-containing urine sample with that of a drug-free sample, 17 characteristic compounds were isolated from the methanol extract of a drug-containing urine sample by column chromatography. Their structures, including 11 isoflavanoids, 2 pterocarpanoids and 4 isoflavonoids, were identified by spectroscopic means. Of the 17 compounds, 8 (1-8) were new compounds with the following structures: 3S-7,3',4'-trihydroxyisoflavan-3'-O-beta-D-glucuronide (1), 3S-7,3',4'-trihydroxyisoflavan-4'-O-beta-D-glucuronide (2), 3S-7,2',4'-trihydroxyisoflavan-2'-O-beta-D-glucuronide (3), 3R-7,2'-dihydroxy-3',4'-dimethoxyisoflavan-2'-O-beta-D-glucuronide (4), 3R-7,2'-dihydroxy-3',4'-dimethoxyisoflavan-2'-O-beta-D-glucuronide-6"-methyl ester (5), 3R-7,2'-dihydroxy-3',4'-dimethoxyisoflavan-7-O-beta-D-glucuronide-6"-methyl ester (6), 3R-7,2',3'-trihydroxy-4'-methoxyisoflavan-3'-O-beta-D-glucuronide-6"-methyl ester (7), and 3S-7,4',5'-trihydroxy-2',3'-dimethoxyisoflavan-5'-O-beta-D-glucuronide (8). Based on the possible relationship and metabolic pathways of the 17 compounds in vivo, 3R-7,2'-dihydroxy-3',4'-dimethoxyisoflavan (isomucronulatol, 11), 6aR,11aR-3-Hydroxy-9,10-Dimethoxypterocarpan (methylnissolin, astrapterocarpan, 13), 7,3'-dihydroxy-4'-methoxyisoflavone (calycosin, 16) and 7-hydroxy-4'-methoxyisoflavone (formononetin, 17) were thought to be the most important absorptive original isoflavonoid constituents of BYHWD in vivo, which underwent reactions of glucuronidation, hydroxylation, demethylation and reduction. The other 13 compounds were deduced to be their metabolites.

Screening and analysis of the multiple absorbed bioactive components and metabolites of Dangguibuxue decoction by the metabolic fingerprinting technique and liquid chromatography/diode-array detection mass spectrometry.[Pubmed:17154345]

Rapid Commun Mass Spectrom. 2007;21(2):99-106.

Based on the metabolic fingerprinting technique and liquid chromatography/diode array detection mass spectrometry (LC/DAD-MS), a method for rapid screening and analysis of the multiple absorbed bioactive components and metabolites of an oral solution of Dangguibuxue decoction (ODD) in rabbit plasma after oral administration of ODD was developed. The results obtained from a comprehensive comparative analysis of the fingerprints of the ODD and its metabolic fingerprints in rabbit plasma indicated that 46 components in the ODD were absorbed into the rabbit's body. Of them, ten components were tentatively identified from their MS and UV spectra and retention behaviors by comparing the results with the reported literature. They were calycosin-7-O-beta-D-glycoside, (6aR,-11aR)-hydroxy-9,10-dimethoxypterocarpan-3-O-beta-D-glycoside, ononin, L-3-Hydroxy-9,10-Dimethoxypterocarpan, formononetin, (3R)-7,2'-dihydroxy-3',4'-dimethoxyisoflavan, sedanenolide, E-ligustilide, Z-ligustilide, and Z-butylidenephthalide. In addition, 21 components were only found in the metabolic fingerprints, which suggested that they might be metabolites of some components in the ODD. The findings demonstrated that the proposed method could be used to rapidly and simultaneously analyze and screen the multiple absorbed bioactive constituents and metabolites in a formula of traditional Chinese medicines (TCMs) by comparing and contrasting the chromatographic fingerprints with its metabolic fingerprints. This is very important not only for the pharmaceutical discovery process and the quality control of crude drugs, but also to explain the curative mechanism of TCMs.

Screening and identification of permeable components in a combined prescription of Danggui Buxue decoction using a liposome equilibrium dialysis system followed by HPLC and LC-MS.[Pubmed:17069252]

J Sep Sci. 2006 Sep;29(14):2211-20.

A new method, i.e., liposome equilibrium dialysis followed by HPLC and LC-MS analysis, has been developed for the screening of permeable components in combined prescriptions of Danggui Buxue decoction (CPDBD). Multiple permeable components were simultaneously predicted by comparison of chromatograms of CPDBD extract before and after interaction with liposome membranes. A diode-array detector (DAD) and an evaporative light scattering detector (ELSD) were used, and the permeable compounds were identified by comparison with the available reference compounds and confirmed by on-line LC-MS. About fifteen compounds in a CPDBD extract were found to interact with liposome membranes. They were identified as calycosin-7-O-beta-D-glucoside (1), senkyunolide I or H (2), ononin (3), (6alphaR,11alphaR)-9,10-dimethoxypterocarpan-3-O-beta-D-glucoside (4), (3R)-2'-hydroxy-3',4'-dimethoxyisoflavan-7-O-beta-D-glucoside (5), calycosin (6), astragaloside IV (7), isoastragaloside II (8), formononetin (9), (6alphaR, 11alphaR),-3-Hydroxy-9,10-Dimethoxypterocarpan (10), (3R)-7,2'-dihydroxy-3',4'-dimethoxyisoflavan (11), astragaloside I (12), isoastragaloside I (13), E-ligustilide (14), and Z-ligustilide (15), respectively. Among all permeable components, 1, 3, 6, and 9 (flavonoids), 2, 14, and 15 (phthalides), and 7 (saponins) have been considered as major bioactive components in CPDBD. Therefore, this new method appears useful as a first step in the screening of bioactive components in natural products including Traditional Chinese Medicines (TCMs).

Liquid chromatography-electrospray ionization mass spectrometry study of the flavonoids of the roots of Astragalus mongholicus and A. membranaceus.[Pubmed:10823504]

J Chromatogr A. 2000 Apr 21;876(1-2):87-95.

High-performance liquid chromatography-electrospray ionization mass spectrometry has been applied to analyze the flavonoids of Huangqi, the roots of Astragalus mongholicus and A. membranaceus. Eight flavonoids were identified as calycosin-7-O-beta-D-glucoside, calycosin-7-O-beta-D-glucoside-6"-O-malonate (2), ononin, (6aR,11aR)-3-Hydroxy-9,10-Dimethoxypterocarpan-3-O-bet a-D-glucoside, calycosin, (3R)-7,2'-dihydroxy-3',4'-dimethoxyisoflavan-7-O-beta-D-glucoside, formononetin-7-O-beta-D-glucoside-6"-O-malonate and formononetin by direct comparison with the isolated standards from Huangqi. The existence of (6aR,11aR)-3-Hydroxy-9,10-Dimethoxypterocarpan, (3R)-7,2'-dihydroxy-3',4'-dimethoxyisoflavan, astrapterocarpanglucoside-6'-O-malonate and astraisoflavanglucoside-6'-O-malonate was detected. This is the first report of flavonoid glycoside malonates in these two Astragalus species, and malonate 2 is a structurally completely identified new compound.

Chemical comparison and classification of Radix Astragali by determination of isoflavonoids and astragalosides.[Pubmed:18272311]

J Pharm Biomed Anal. 2008 Jun 9;47(2):399-406.

Eleven major isoflavonoids and three major astragalosides in the xylem and bark of cultivated Radix Astragali (RA) from different cultivated regions of China were determined by high performance liquid chromatography. The results showed that the contents of astragalosides in the bark are up to 74-fold higher than in the xylem, and that thin roots contained more astragalosides than thick roots. Although the contents of isoflavonoids varied between samples, no significant difference was observed between the isoflavonoids content of xylem and bark, or between that of thin and thick roots. It was also found that the chemical profile of isoflavonoids in the xylem and bark are related to their cultivated regions. Constituents in either xylem or bark were divided into five groups according to their chemical structures: (1) Group 1 (G1), contained calycosin and related constituents; (2) Group 2 (G2), contained ononin and related constituents; (3) Group 3 (G3), contained (6aR,11aR)-3-Hydroxy-9,10-Dimethoxypterocarpan and related constituents; (4) Group 4 (G4), contained (3R)-7,2'-dihydroxy-3',4'-dimethoxyisoflavan and related constituents; and (5) Group 5 (G5), contained astragalosides, compounds AG I, AG II, and AG IV. Based on the integrated contents of constituents in each group, the cultivated region of RA was successfully distinguished by principal components analysis (PCA). Chemical constituents in RA cultivated from different regions of China were compared and it was concluded that the quality of thin RA roots is better than thick RA roots.

Absorption and metabolism of Astragali radix decoction: in silico, in vitro, and a case study in vivo.[Pubmed:16507649]

Drug Metab Dispos. 2006 Jun;34(6):913-24.

To profile absorption of Astragali Radix decoction and identify its orally absorbable constituents and their metabolites, four complementary in silico, in vitro, and in vivo methods, i.e., a computational chemistry prediction method, a Caco-2 cell monolayer model experiment, an improved rat everted gut sac experiment, and a healthy human volunteer experiment, were used. According to the in silico computation result, 26 compounds of Astragali Radix could be regarded as orally available compounds, including 12 flavonoids. In the in vitro and in vivo experiments, 21 compounds were tentatively identified by high-performance liquid chromatography-diode array detection-electrospray ion trap tandem mass spectrometry data, which involved calycosin, formononetin, (6aR,11aR)-3-Hydroxy-9,10-Dimethoxypterocarpan, 7,2'-dihydroxy-3',4'-dimethoxyisoflavan, calycosin-7-O-beta-D-glucoside, formononetin-7-O-beta-D-glucoside, 7,2'-dihydroxy-3',4'-dimethoxyisoflavan-7-O-beta-D-glucoside-6''-O-malonate, (6aR,11aR)-3-Hydroxy-9,10-Dimethoxypterocarpan-3-O-beta-D-glucoside, and phase II metabolites calycosin-7-O-beta-D-glucuronide, formononetin-7-O-beta-D-glucuronide, (6aR,11aR)-3-Hydroxy-9,10-Dimethoxypterocarpan-3-O-beta-D-glucuronide, 7,2'-dihydroxy-3',4'-dimethoxyisoflavan-7-O-beta-D-glucuronide, and calycosin sulfate. Calycosin and formononetin were proved absorbable by four methods; (6aR,11aR)-3-Hydroxy-9,10-Dimethoxypterocarpan and 7,2'-dihydroxy-3',4'-dimethoxyisoflavan were proved absorbable by three methods; formononetin-7-O-beta-D-glucoside and (6aR,11aR)-3-Hydroxy-9,10-Dimethoxypterocarpan-3-O-beta-D-glucoside were proved absorbable by two methods. The existence of calycosin-7-O-beta-D-glucuronide, formononetin-7-O-beta-D-glucuronide, (6aR,11aR)-3-Hydroxy-9,10-Dimethoxypterocarpan-3-O-beta-D-glucuronide, 7,2'-dihydroxy-3',4'-dimethoxyisoflavan-7-O-beta-D-glucuronide, and calycosin sulfate was proved by two or three methods. We found that besides isoflavones, pterocarpans and isoflavans also could be metabolized by the intestine during absorption, and the major metabolites were glucuronides. In conclusion, the present study demonstrated that the flavonoids in Astragali Radix decoction, including isoflavones, pterocarpans, and isoflavans, could be absorbed and metabolized by the intestine. These absorbable compounds, which were reported to have various bioactivities related to the curative effects of Astragali Radix decoction, could be regarded as an important component of the effective constituents of Astragali Radix decoction.

On-line identification of the constituents of Buyang Huanwu decoction in pig serum using combined HPLC-DAD-MS techniques.[Pubmed:16406846]

J Chromatogr B Analyt Technol Biomed Life Sci. 2006 Feb 2;831(1-2):288-302.

Buyang Huanwu decoction (BYHWD) is a widely used Chinese traditional compound medicine that has proved effective in treating cerebrovascular illnesses; however, its active substances have remained unknown. In this paper, serum chemistry and combined high-performance liquid chromatography (HPLC), photodiode-array detection and mass-spectrometry techniques were used to study the constituents of BYHWD from pig serum after oral administration. A total of 45 characteristic HPLC peaks were detected from serum containing drug. The chemical structures of nine of the peaks were tentatively elucidated as 7,3'-dihydroxy-4'-methoxyisoflavone-7-O-glucuronide (P1), 7-hydroxy-4'-methoxyisoflavone-7-O-glucuronide (P2), 7,2',4'-trihydroxy-3'-methoxyisoflavane-7-O-sulphate (P3), 3-Hydroxy-9,10-Dimethoxypterocarpan-3-O-glucuronide (P4), 7,2'-dihydroxy-3',4'-dimethoxyisoflavane-7-O-glucuronide (P5), 3-Hydroxy-9,10-Dimethoxypterocarpane-3-O-sulphate (P6), 4(1H)-quinolinone (P7 or P8), 4-hydroxyquinoline (P8 or P7) and oleic acid (P9). All of the identified peaks, with the exception of P9, were metabolites of the constituents of BYHWD in vivo.

Simultaneous determination of six isoflavonoids in commercial Radix Astragali by HPLC-UV.[Pubmed:15752625]

Fitoterapia. 2005 Mar;76(2):157-65.

A HPLC-UV method for the quantification of six major isoflavonoids, calycosin 7-O-beta-D-glucoside (1), formononetin 7-O-beta-D-glucoside (2), (6alphaR, 11alphaR) 3-Hydroxy-9,10-Dimethoxypterocarpan-3-O-beta-D-glucoside (3), 7,2'-dihydroxy-3',4'-dimethoxyisoflavan-7-O-beta-D-glucoside (4), calycosin (5) and formononetin (6), in Radix Astragali (Huangqi) was developed and validated. The method was proven to be sensitive, specific, accurate and precise, as well as effective and easy.

Description

Methylnissolin (Astrapterocarpan), isolated from Astragalus membranaceus, inhibits platelet-derived growth factor (PDGF)-BB-induced cell proliferation with an IC50 of 10 μM. Methylnissolin inhibits PDGF-BB-induced phosphorylation of extracellular signal-regulated kinase 1/2 (ERIC1/2) mitogen-activated protein (MAP) kinase. Methylnissolin inhibits PDGF-BB-induced vascular smooth muscle cell proliferation by inhibition of the ERK1/2 MAP kinase cascade.

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