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Tetrahydroepiberberine
ChemFaces products have been cited in many studies from excellent and top scientific journals
Product Name Tetrahydroepiberberine
Price: $238 / 10mg
CAS No.: 38853-67-7
Catalog No.: CFN90507
Molecular Formula: C20H21NO4
Molecular Weight: 339.15 g/mol
Purity: >=98%
Type of Compound: Alkaloids
Physical Desc.: Cryst.
Source: The herbs of Sinomenium acutum
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download: COA    MSDS    SDF
Similar structural: Comparison (Web)  (SDF)
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Size /Price /Stock 10 mM * 1 mL in DMSO / $87.3 / In-stock
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Related Screening Libraries
Size /Price /Stock 10 mM * 100 uL in DMSO / Inquiry / In-stock
10 mM * 1 mL in DMSO / Inquiry / In-stock
Related Libraries
Biological Activity
Description: Tetrahydroepiberberine is a natural product from Sinomenium acutum.
Tetrahydroepiberberine Description
Source: The herbs of Sinomenium acutum
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Storage: Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).

Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com

After receiving: The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Recently, ChemFaces products have been cited in many studies from excellent and top scientific journals

Cell. 2018 Jan 11;172(1-2):249-261.e12.
doi: 10.1016/j.cell.2017.12.019.
IF=36.216(2019)

PMID: 29328914

Cell Metab. 2020 Mar 3;31(3):534-548.e5.
doi: 10.1016/j.cmet.2020.01.002.
IF=22.415(2019)

PMID: 32004475

Mol Cell. 2017 Nov 16;68(4):673-685.e6.
doi: 10.1016/j.molcel.2017.10.022.
IF=14.548(2019)

PMID: 29149595

ACS Nano. 2018 Apr 24;12(4): 3385-3396.
doi: 10.1021/acsnano.7b08969.
IF=13.903(2019)

PMID: 29553709

Nature Plants. 2016 Dec 22;3: 16206.
doi: 10.1038/nplants.2016.205.
IF=13.297(2019)

PMID: 28005066

Sci Adv. 2018 Oct 24;4(10): eaat6994.
doi: 10.1126/sciadv.aat6994.
IF=12.804(2019)

PMID: 30417089
Calculate Dilution Ratios(Only for Reference)
1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.9485 mL 14.7427 mL 29.4855 mL 58.971 mL 73.7137 mL
5 mM 0.5897 mL 2.9485 mL 5.8971 mL 11.7942 mL 14.7427 mL
10 mM 0.2949 mL 1.4743 mL 2.9485 mL 5.8971 mL 7.3714 mL
50 mM 0.059 mL 0.2949 mL 0.5897 mL 1.1794 mL 1.4743 mL
100 mM 0.0295 mL 0.1474 mL 0.2949 mL 0.5897 mL 0.7371 mL
* Note: If you are in the process of experiment, it's need to make the dilution ratios of the samples. The dilution data of the sheet for your reference. Normally, it's can get a better solubility within lower of Concentrations.
Protocol
Structure Identification:
J Sep Sci. 2013 Jul;36(13):2090-5.
Simultaneous quantification of 11 isoquinoline alkaloids in Corydalis impatiens (Pall.) Fisch by HPLC.[Pubmed: 23610009]
Isoquinoline alkaloids are the primary active ingredients of Corydalis, but an analytical method for quality assessment of the active ingredients in Corydalis impatiens (Pall). Fisch has not been reported. A new, simple, and multiple-component quantification method was developed for the simultaneous quantification of 11 isoquinoline alkaloids including capnoidine, chelianthifoline, bicuculline, protopine, isoapocavidine, apocavidine, cavidine, Tetrahydroepiberberine, ochotensimine, tetrahydrocoptisine, and tetrahydrocorysamine in C. impatiens.
METHODS AND RESULTS:
Separation of the isoquinoline alkaloids was performed on a RP C18 column (150 × 4.6 mm, 5 μm) with potassium dihydrogen phosphate buffer (pH 2.5, adjusted by phosphoric acid)/acetonitrile (53:47, v/v) containing 0.3% sodium dodecyl sulfonate. The flow rate and detection wavelength were set at 1 mL/min and 295 nm, respectively. Full validation of the assay was carried out including linearity, precision, accuracy, stability, LOD, and limit of quantitation. All calibration curves showed a good linear relationship (r > 0.999) in test range. The results demonstrated that the developed method was reliable, rapid, and specific. Six batches of C. impatiens samples from different sources were determined using the established method. The contents of alkaloids ranged from 11.68 to 351.83 μg/g.
CONCLUSIONS:
This method can be applied for quality evaluation and control of C. impatiens. Eleven isoquinoline alkaloids were first reported on simultaneous determination with HPLC.
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