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ent-16beta,17-Dihydroxy-19-kauranoic acid
ChemFaces products have been cited in many studies from excellent and top scientific journals
Product Name ent-16beta,17-Dihydroxy-19-kauranoic acid
Price:
CAS No.: 3301-61-9
Catalog No.: CFN98424
Molecular Formula: C20H32O4
Molecular Weight: 336.5 g/mol
Purity: >=98%
Type of Compound: Diterpenoids
Physical Desc.: Powder
Source: The herbs of Xanthium sibiricum Patrin
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download: COA    MSDS    SDF    Manual
Similar structural: Comparison (Web)  (SDF)
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Description: Reference standards.
ent-16beta,17-Dihydroxy-19-kauranoic acid Description
Source: The herbs of Xanthium sibiricum Patrin
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 2.9718 mL 14.8588 mL 29.7177 mL 59.4354 mL 74.2942 mL
5 mM 0.5944 mL 2.9718 mL 5.9435 mL 11.8871 mL 14.8588 mL
10 mM 0.2972 mL 1.4859 mL 2.9718 mL 5.9435 mL 7.4294 mL
50 mM 0.0594 mL 0.2972 mL 0.5944 mL 1.1887 mL 1.4859 mL
100 mM 0.0297 mL 0.1486 mL 0.2972 mL 0.5944 mL 0.7429 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:
Journal of Chinese Pharmaceutical Sciences, 2006, 41(24):1854-1857.
Study on chemical constituents of Herba Siegesbeckiae.[Reference: WebLink]
To study the chemical constituents in the ethyl acetate fraction of Herba Siegesbeckiae.
METHODS AND RESULTS:
Compounds were isolated and purified by silica gel columns and MPLC, and their structures were identified by the physicochemical properties and spectral analysis. Seven compounds were isolated and elucidated as 3′,5′,β-trihydroxy-3,4,4′, α-tetramethoxy-chalcone (1), kirenol (2), darutigenol (3), siegesbeckic acid (4), ent-16β,17-dihydroxy-19-kauranoic acid (ent-16beta,17-Dihydroxy-19-kauranoic acid,5), ent-16αH-17- hydroxy-19-kauranoic acid (6) and stigmasterol (7).
CONCLUSIONS:
Compound 1 is the new compound.
L-Aspartic acid

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CAS No: 56-84-8
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o-Methoxycinnamaldehyde

Catalog No: CFN93299
CAS No: 1504-74-1
Price: $40/20mg
Notoginsenoside R1

Catalog No: CFN99999
CAS No: 80418-24-2
Price: $50/20mg
Lucidenic acid A

Catalog No: CFN90574
CAS No: 95311-94-7
Price: $318/20mg
(-)-Hinokinin

Catalog No: CFN92255
CAS No: 26543-89-5
Price: $ / mg
Taxifolin

Catalog No: CFN98734
CAS No: 480-18-2
Price: $30/20mg
Alisol A

Catalog No: CFN92542
CAS No: 19885-10-0
Price: $80/20mg
Cucurbitacin A

Catalog No: CFN90324
CAS No: 6040-19-3
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Coniferin

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CAS No: 531-29-3
Price: $288/20mg
Galangin

Catalog No: CFN98918
CAS No: 548-83-4
Price: $40/20mg
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