4-O-beta-Glucopyranosyl-cis-coumaric acid | CAS:117405-48-8

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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Polymeric fractions containing phenol glucosides in flaxseed.[Reference: WebLink]

METHODS AND RESULTS:
Extract rich in phenolic compounds was obtained from flaxseed with 1,4-dioxane:ethanol (1:1, v/v). This extract (whole polymer) was fractionated by solid-phase extraction into three “polymeric” fractions of comparable polarity. HPLC analyses of the base hydrolysates of the three polymeric fractions showed that they contain the same UV-absorbing components, though at different levels and all contained substantial amounts of a lignan, secoisolariciresinoldiglucoside (SDG). Fractionation of the base hydrolysates by column chromatography, followed by high performance liquid chromatography (HPLC) yielded two pure hydroxycinnamic acid derivatives; 4-O-β-d-glucopyranosyl-p-coumaric acid(4-O-beta-Glucopyranosyl-cis-coumaric acid) and 4-O-β-d-glucopyranosylferulic acid, whose structures were identified by nuclear magnetic resonance spectroscopy (NMR). NMR analysis showed all three polymeric fractions to have phenolic and aliphatic components and, in line with HPLC, suggested some structural variations between these fractions.
CONCLUSIONS:
The results of this study suggest that the glucosylated phenolic compounds of flaxseed exist in polymeric structure(s) containing ester linkages.

Product Name	4-O-beta-Glucopyranosyl-cis-coumaric acid
CAS No.:	117405-48-8
Catalog No.:	CFN93803
Molecular Formula:	C₁₅H₁₈O₈
Molecular Weight:	326.29 g/mol
Purity:	>=98%
Type of Compound:	Phenylpropanoids
Physical Desc.:	Powder
Source:	The herbs of Trifolium pratense
Solvent:	DMSO, Pyridine, Methanol, Ethanol, etc.
Price:	$413/5mg