Epimedin B

CAS# 110623-73-9

Epimedin B

2D Structure

Catalog No. BCN1039----Order now to get a substantial discount!

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Quality Control of Epimedin B

3D structure

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Epimedin B

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Chemical Properties of Epimedin B

Cas No. 110623-73-9 SDF Download SDF
PubChem ID 5748393 Appearance Yellow powder
Formula C38H48O19 M.Wt 808.78
Type of Compound Flavonoids Storage Desiccate at -20°C
Solubility DMSO : 33.33 mg/mL (41.21 mM; Need ultrasonic)
Chemical Name 3-[(2S,3R,4R,5R,6S)-4,5-dihydroxy-6-methyl-3-[(2S,3R,4S,5R)-3,4,5-trihydroxyoxan-2-yl]oxyoxan-2-yl]oxy-5-hydroxy-2-(4-methoxyphenyl)-8-(3-methylbut-2-enyl)-7-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxychromen-4-one
SMILES CC1C(C(C(C(O1)OC2=C(OC3=C(C2=O)C(=CC(=C3CC=C(C)C)OC4C(C(C(C(O4)CO)O)O)O)O)C5=CC=C(C=C5)OC)OC6C(C(C(CO6)O)O)O)O)O
Standard InChIKey OCZZCFAOOWZSRX-LRHLXKJSSA-N
Standard InChI InChI=1S/C38H48O19/c1-14(2)5-10-18-21(53-37-31(49)28(46)26(44)22(12-39)54-37)11-19(40)23-27(45)34(32(55-33(18)23)16-6-8-17(50-4)9-7-16)56-38-35(29(47)24(42)15(3)52-38)57-36-30(48)25(43)20(41)13-51-36/h5-9,11,15,20,22,24-26,28-31,35-44,46-49H,10,12-13H2,1-4H3/t15-,20+,22+,24-,25-,26+,28-,29+,30+,31+,35+,36-,37+,38-/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.

Source of Epimedin B

The herbs of Epimedium brevicornum Maxim

Biological Activity of Epimedin B

DescriptionEpimedin A,epimendin B, epimendin C, icariin and baohuoside are flavonoids, main active ingredient in Epimedium, have clear anti-osteoporosis effect, the accumulation of epimedins A, B, C, and icariin in a traditional medicinal plant could be suppressed by light stress.
In vitro

Light stress suppresses the accumulation of epimedins A, B, C, and icariin in Epimedium, a traditional medicinal plant.[Reference: WebLink]

Acta Physiol Plant, 2013, 35(11):3271-5.

Epimedium is well-known in China and East Asia due to high content of flavonoid derivatives, including icariin, epimedin A, Epimedin B, and epimedin C, hereafter designated as bioactive components, which have been extensively utilized to cure many diseases. So far, the molecular mechanism of the bioactive components biosynthesis remains unclear.
METHODS AND RESULTS:
In the present study, the effect of light stress (24 h illumination) on the accumulation of bioactive components and the expression of flavonoid genes in Epimedium was investigated. Under light stress, the structural genes CHS1, CHI1, F3H, FLS, DFR1, DFR2, and ANS were remarkably up-regulated while CHS2 and F3′H were significantly down-regulated. For transcription factors, the expression of Epimedium MYB7 and TT8 were increased while Epimedium GL3, MYBF, and TTG1 expression were depressed. Additionally, the content of bioactive components was significantly decreased under light stress.
CONCLUSIONS:
Our results suggested that the decrease of bioactive compounds may be attributed to transcripts of late genes (DFRs and ANS) increased to a higher level than that of early genes (FLS and CHS1).

Protocol of Epimedin B

Kinase Assay

Study on Different Factors Affecting the Bionic Enzymatic Hydrolysis of Icariin,Epimedin A,Epimendin B,Epimendin C and Eplmedium Flavonolds.[Reference: WebLink]

National Symposium on Chinese medicine and natural medicine. 2014.

Flavonoids were the main active ingredient in Epimedium and mainly included icariin,epimedin A,epimendin B,epimendin C and baohuoside.Modern pharmacological studies have shown that Epimedium flavone had clear anti-osteoporosis effect. In order to obtain an improved absorption,transformation to secondary glycosides by intestinal enzymes and intestinal bacteria is necessary after the oral administration[1].However,intestinal enzymes and intestinal bacteria were unstable and could be affected by race,age,diet and medication[2].To screen effective and safe hydrolase in vitro and add it to epimedium flavone preparation could promote oral absorption of epimedium flavonoids,increase its bioavailability and improve its efficacy.
METHODS AND RESULTS:
This study aims to screen effective and safe hydrolase,investgate different factors which affect the bionic enzymatic hydrolysis of epimedium flavonoids and optimize the reaction conditions for building a novel bionic enzymolysis drug delivery system.To simulate the environment in vivo,37 °C was set as the temperature and artificial intestinal juice and gastric juice was selected as the buffer solutions.Taking the conversion of epimedium flavonoids as index,the effects of the kinds of enzyme,the ratio of enzyme and substrate,substrate concentration,reaction time,pancreatin were investigated.
CONCLUSIONS:
The results show the conversion of epimedium flavonoids was highest and their enzymolysis products was accordant with the intestinal metabolites by using snailase in artificial intestinal juice.Moreover,the main flavonoids could be completely transformed into the secondary glycoside or aglycone during 2~6 h.

Structure Identification
Nat Prod Res. 2015;29(2):185-8.

Simultaneous enrichment and separation of flavonoids from Herba Epimedii by macroporous resins coupled with preparative chromatographic method.[Pubmed: 25277166]


METHODS AND RESULTS:
An efficient, feasible enrichment and separation method of epimedin A,Epimedin B,epimedin C and icariin from Herba Epimedii was developed by the combination of microwave-assisted extraction, macroporous resins and preparative HPLC. WDX-5 macroporous resin shows better recoveries at 96.2%, 97.0%, 98.2% and 97.1% for epimedins A, B, C and icariin than other macroporous resins used in the experiments. As a result, epimedins A (5.1 mg),Epimedin B (15.3 mg),epimedin C (7.6 mg) and icariin (14.3 mg) were obtained from 6.0 g crude Herba Epimedii with the recoveries at 70.8%, 68.9%, 66.7% and 95.3%, respectively.
CONCLUSIONS:
The method developed in this study may provide scientific references for the enrichment and separation of flavonoids from Herba Epimedii.

Epimedin B Dilution Calculator

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Epimedin B Molarity Calculator

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Preparing Stock Solutions of Epimedin B

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 1.2364 mL 6.1822 mL 12.3643 mL 24.7286 mL 30.9108 mL
5 mM 0.2473 mL 1.2364 mL 2.4729 mL 4.9457 mL 6.1822 mL
10 mM 0.1236 mL 0.6182 mL 1.2364 mL 2.4729 mL 3.0911 mL
50 mM 0.0247 mL 0.1236 mL 0.2473 mL 0.4946 mL 0.6182 mL
100 mM 0.0124 mL 0.0618 mL 0.1236 mL 0.2473 mL 0.3091 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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Background on Epimedin B

Epimedin B, a component extracted from Epimedii Folium, is reported to have antiosteoporotic activity. IC50 value: Target: In vitro: In vivo: Prednisolone-induced osteoporosis model using zebrafish was used to evaluate the antiosteoporotic activity of micro amount epimedin B. The result showed that 1 μmol·L- 1epimedin B groups were significantly increased when compared with model group; Epimedin B can prevent zebrafish osteoporosis induced by prednisolone [1].

References:
[1]. ZHAN Yang, et al. Evaluation of Antiosteoporotic Activity for Micro Amount Icariin and Epimedin B Based on the Osteoporosis Model Using Zebrafish. Chinese Pharmaceutical Journal, 2014-01 [2]. Cui L, et al. Metabolite profiles of epimedin B in rats by ultraperformance liquid chromatography/quadrupole-time-of-flight mass spectrometry. J Agric Food Chem. 2013 Apr 17;61(15):3589-99. [3]. ZHANG Hua-feng, et al. Effects of microwave radiation on extraction of epimedin B from Epimedii Folium. Chinese Traditional and Herbal Drugs, 2011-09

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References on Epimedin B

Simultaneous enrichment and separation of flavonoids from Herba Epimedii by macroporous resins coupled with preparative chromatographic method.[Pubmed:25277166]

Nat Prod Res. 2015;29(2):185-8.

An efficient, feasible enrichment and separation method of epimedins A, B, C and icariin from Herba Epimedii was developed by the combination of microwave-assisted extraction, macroporous resins and preparative HPLC. WDX-5 macroporous resin shows better recoveries at 96.2%, 97.0%, 98.2% and 97.1% for epimedins A, B, C and icariin than other macroporous resins used in the experiments. As a result, epimedins A (5.1 mg), B (15.3 mg), C (7.6 mg) and icariin (14.3 mg) were obtained from 6.0 g crude Herba Epimedii with the recoveries at 70.8%, 68.9%, 66.7% and 95.3%, respectively. The method developed in this study may provide scientific references for the enrichment and separation of flavonoids from Herba Epimedii.

[Simultaneous assay of epimedin A epimedin B, epimedin C and icariin in herba epimedii by QAMS].[Pubmed:21438397]

Zhongguo Zhong Yao Za Zhi. 2010 Dec;35(24):3310-3.

OBJECTIVE: To establish a new method and validate its feasibilities for quality evaluation of Fructus Epimedii. METHOD: Four main effective flavones, epimedin A, Epimedin B, epimedin C and icariin were selected as analytes to evaluate the quality of Fructus Epimedii. The relative correction factors (RCF) of icariin to the other three flavones were calculated. The method was evaluated by comparison of the quantitative results between external standard method and QAMS method. RESULT: No significant differences were found in the quantitative results of three flavones by external standard method and QAMS method. CONCLUSION: It is feasible and accurate to evaluate the quality of Fructus Epimedii.

Description

Epimedin B, a component extracted from Epimedii Folium, is reported to have antiosteoporotic activity.

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