1,2,3,6,7-Pentamethoxyxanthone | CAS:64756-86-1

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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.

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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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Chemical constituents of Polygala tenuifolia root.[Pubmed: 25857159]

To study the chemical constituents from the root of Polygala tenuifolia.
METHODS AND RESULTS:
Silica gel,Sephadex LH-20 and ODS chromatographic techniques were used to study the chemical constituents of Polygala tenuifolia, and the chemical structures were elucidated by application of spectral data. Eight-compounds were obtained and their structure were identified as 7-hydroxy-1-methoxy-2,3-methylenedioxyxanthone(1), 1, 7-dihydroxy-2, 3-dimethoxyxanth one(2), 1,3,6-trihydroxy-2, 7-dimethoxyxanthone(3),7-hydroxy-1,2, 3-trimethoxyxanthone(4), 1,2,3,6,7-Pentamethoxyxanthone(5), 1,3, 7-trihydroxy-2, 6-dimethanoxyxanthone (6),7-hydroxy-1-methoxyxanthone(7) and 1,7-dihydroxy-3,4-dimethoxyxanthone(8).
CONCLUSIONS:
Compounds 1,6,7 and 8 are isolated from Polygala tenuifolia for the first time.

Product Name	1,2,3,6,7-Pentamethoxyxanthone
CAS No.:	64756-86-1
Catalog No.:	CFN89241
Molecular Formula:	C₁₈H₁₈O₇
Molecular Weight:	346.33 g/mol
Purity:	>=98%
Type of Compound:	Xanthones
Physical Desc.:	Powder
Source:	The roots of Polygala tenuifolia.
Solvent:	Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Price: