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Siegesmethyetheric acid
Siegesmethyetheric acid
ChemFaces products have been cited in many studies from excellent and top scientific journals
Product Name Siegesmethyetheric acid
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CAS No.: 196399-16-3
Catalog No.: CFN93224
Molecular Formula: C21H34O3
Molecular Weight: 334.50 g/mol
Purity: >=98%
Type of Compound: Diterpenoids
Physical Desc.: Powder
Source: The herbs of Siegesbeckia orientalis L.
Solvent: Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download: COA    MSDS
Similar structural: Comparison
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Description: Reference standards.
Siegesmethyetheric acid Description
Source: The herbs of Siegesbeckia orientalis L.
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 2.9895 mL 14.9477 mL 29.8954 mL 59.7907 mL 74.7384 mL
5 mM 0.5979 mL 2.9895 mL 5.9791 mL 11.9581 mL 14.9477 mL
10 mM 0.299 mL 1.4948 mL 2.9895 mL 5.9791 mL 7.4738 mL
50 mM 0.0598 mL 0.299 mL 0.5979 mL 1.1958 mL 1.4948 mL
100 mM 0.0299 mL 0.1495 mL 0.299 mL 0.5979 mL 0.7474 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:
Acta Pharmaceutica Sinica, 1997, 32(4):282-285.
Studies on liposoluble constituents from the aerial parts of Siegesbeckia orientalis L.[Reference: WebLink]
Eight compounds were isolated from the aerial parts of Siegesbeckia orientalis L. and their structures were elucidated by spectroscopic methods(IR, EI-MS, 13C-NMR, 1H-NMR, 1H-1H COSY, 1H-1H NOESY and 1H-13C COSY).
METHODS AND RESULTS:
Compounds I and II are new natural products and named siegesesteric acid(I) and siegesetheric acid(II), their structures were confirmed as ent-17-acetoxy-18-isobutyryloxy-16(alpha)-kauran-19-oic acid(I) and ent-17-ethoxy-16(alpha)-(-)-kauran-19-oic acid(II). The others were identified as known compounds: ent-16 beta, 17-dihydroxy-kauran-19-oic acid (III), kirenol(IV), beta-sitosteryl glucoside(V), heneicosanol(VI), methyl arachidate(VII) and beta-sitosterol(VIII).
CONCLUSIONS:
These compounds, except kirenol and beta-sitosterol, were isolated for the first time from the title plant.
Astragaloside I

Catalog No: CFN99172
CAS No: 84680-75-1
Price: $50/20mg
Ganoderic acid TR

Catalog No: CFN92235
CAS No: 862893-75-2
Price: $368/5mg
Tussilagone

Catalog No: CFN90629
CAS No: 104012-37-5
Price: $148/20mg
L-Glutamic acid

Catalog No: CFN93108
CAS No: 56-86-0
Price: $30/20mg
Isovitexin 2''-O-arabinoside

Catalog No: CFN90943
CAS No: 53382-71-1
Price: $318/10mg
Isorhyncophylline

Catalog No: CFN92553
CAS No: 6859-01-4
Price: $158/20mg
Rebaudioside C

Catalog No: CFN90258
CAS No: 63550-99-2
Price: $100/20mg
Kaempferide

Catalog No: CFN98782
CAS No: 491-54-3
Price: $40/20mg
Apiin

Catalog No: CFN90165
CAS No: 26544-34-3
Price: $248/20mg
Capsanthin

Catalog No: CFN70366
CAS No: 465-42-9
Price: $ / mg
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