Citroside A
Citroside A is a natural product from Cirsium setosum.
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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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Zhongguo Zhong Yao Za Zhi. 2016 May;41(9):1649-1653.
Study on active constituents against Alzheimer's disease from Valeriana amurensis.[Pubmed:
28891614]
METHODS AND RESULTS:
In this study, the chemical constituentsfrom Valeriana amurensis AD-effective fraction were investigated based on the effect of Valeriana amurensis on Alzheimer's disease (AD) in previous study. Valeriana amurensis was extracted with 75% ethanol and the obtained extract were extracted and subjected to AB-8 macroporous resin column to obtain the AD-effective fraction of Valeriana amurensis. 9 compounds (1-9) were isolated with silica gel, ODS column chromatography and preparative HPLC. The structures of these compounds were determined as 6-hydroxy-7-(hydroxymethyl)-4-methylenehexahydrocyclopenta[c]-pyran-1(3H)-one (1), suspensolide F (2), loganin(3), α-morroniside(4), β-morronisid (5), partinovalerosidate (6), zansiumloside A (7), (-)-angelicoidenol-2-O-β-D-glucopyranoside (8), Citroside A (9).
CONCLUSIONS:
Compounds 6-9 were isolated from the valerian genus for the first time and further investigated the anti-AD effect of compounds 1-9 in vitro found that compound 2 and 6 protected the PC12 cells from injury significantly.
Chin J Nat Med. 2013 Sep;11(5):534-7.
A new megastigmane glycoside from the aerial parts of Cirsium setosum.[Pubmed:
24359780 ]
To study the chemical constituents of the aerial parts of Cirsium setosum (Willd.) MB..
METHODS AND RESULTS:
The chemical constituents were isolated and purified by various chromatographic techniques. Their structures were determined on the basis of physical properties and spectroscopic data.A new megastigmane glycoside and six known compounds were obtained and identified as (7E, 9R)-9-hydroxy-5, 7-megastigmadien-4-one-9-O-α-L-arabinopyranosyl-(1→6)-β-D-glucopyanoside (1), (6R, 7E, 9R)-9-hydroxy-4, 7-megastigmadien-3-one-9-O-α-L-arabinopyranosyl-(1→6)-β-D-glucopyranoside (2), urolignoside (3), 4, 9, 9'-trihydroxy-3, 3'-dimethoxy-8-O-4$\prime $-neolignan-7-O-β-D-glucopyranoside (4), Citroside A (5), salidrosidin (6), and adenosine (7).
CONCLUSIONS:
Compound 1 is a new megastigmane glycoside, named as Xiaojiglycoside A.
