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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: firstname.lastname@example.org
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.
Industrial Crops and Products2019, 140:111612
J of Advanced Scientific R.2020, 11(3), p109-120.
Toxicological Research2020, doi: 10.1007.
Life (Basel).2022, 12(12):2107.
Mol Biol Rep.2022, doi: 10.1007
Antiviral Res.2021, 193:105142.
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Chemistry of Natural Compounds, 2016, 52(5).
A New Diarylheptanoid from the Rhizomes of Alpinia officinarum.[Reference: WebLink
To study the chemical constituents from the rhizomes of Alpinia officinarum Hance.
METHODS AND RESULTS:
The chemical constituents were isolated with various chromatographic techniques, and their chemical structures were elucidated on the basis of spectral analysis.
Five diarylheptanoids were obtained and their structures were identified as 5-ethoxyl-7-(4-hydroxy-3-methoxy-phenyl)-1-phenyl-3-heptanone (1), 5-hydroxy-1,7-diphenyl-3-heptanone ((R)-5-Hydroxy-1,7-diphenyl-3-heptanone, 2), 5-hydroxy-7-(4-hydroxyl-3-methoxyphenyl)-1-phenyl-3-heptanone (3), 5-methoxy-7-(4-hydroxy-3-methoxyphenyl)-1-phenyl-3-heptanone (4), and (E)-7-(4-hydroxy-3-methoxyphenyl)-1-phenylhept-4-en-3-one (5).
Compound 1 is a new diarylheptanoid.