Maglifloenone
Standard reference
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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
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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J Chromatogr B Analyt Technol Biomed Life Sci. 2011 Dec 1;879(31):3775-9.
Isolation and purification of seven lignans from Magnolia sprengeri by high-speed counter-current chromatography.[Pubmed:
22080044]
Seven lignans including (-)-Maglifloenone, futoenone, magnoline, cylohexadienone, fargesone C, fargesone A and fargesone B were isolated and purified from Magnolia sprengeri Pamp.
METHODS AND RESULTS:
Using high-speed counter-current chromatography (HSCCC) with two-step separation. In the first step, a stepwise elution mode with the two-phase solvent system composed of petroleum ether-ethyl acetate-methanol-water (1:0.8:0.6:1.2, 1:0.8:0.8:1, v/v) was used and 15.6 mg of (-)-Maglifloenone, 19.2 mg of futoenone, 10.8 mg of magnoline, 14.7 mg of cylohexadienone and 217 mg residues were obtained from 370 mg crude extract. In the second step, the residues were successfully separated by HSCCC with the solvent system composed of petroleum ether-ethyl acetate-methanol-water (1:0.8:1.2:0.6, v/v), yielding 33.2 mg of fargesone C, 47.5 mg of fargesone A and 17.7 mg of fargesone B.
The purities of the separated compounds were all over 95% determined by HPLC. The chemical structures of these compounds were confirmed by (1)H NMR, (13)C NMR and ESI-MS.
