Daphnicyclidin H
Daphnicyclidin H is a natural product from Daphniphyllum humile and D.teijsmanni.
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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. 2011 Nov;36(22):3134-6.
Chemical studies on alkaloids of Chinese medicinal herbs Daphniphyllum macropodum.[Pubmed:
22375393]
To study the alkaloids of the Chinese medicinal herbs Daphniphyllum macropodum for in search for new bioactive substances.
METHODS AND RESULTS:
The CHCl3 extract of D. macropodum was subjected to repeated column chromatography on silica gel to afford four pure compounds (1-4). Their structures were determined on the basis of detailed spectroscopic analysis and comparison with the data reported in the literature. The four known compounds were isolated and elucidated as Daphniphyllum alkaloids with different carbon skeletons, namely longistylumphylline A (1), deoxycalyciphylline B (2), daphnicyclidin B (3) and Daphnicyclidin H (4), respectively.
CONCLUSIONS:
All compounds were isolated from the titled plant for the first time. The discovery of daphnicyclidin B (3) and Daphnicyclidin H (4) further confirmed the biogenetic relationship between the two compounds and the previously reported macropodumines A-C, found in the same plant.
Chem Biodivers. 2006 Nov;3(11):1255-9.
A zwitterionic alkaloid, containing a rare cyclopentadienyl anion unit, from the stem barks of Daphniphyllum macropodum Miq.[Pubmed:
17193239 ]
METHODS AND RESULTS:
A new Daphniphyllum alkaloid daphnicyclidin L (1), containing a rare cyclopentadienyl anion, which is stabilized as a zwitterion by an internal iminium counterion, was isolated from the stem barks of Daphniphyllum macropodum Miq., together with four known alkaloids: daphnicyclidin D (2), Daphnicyclidin H (3), deoxyyuzurimine (4), and yuzurimine (5). The structures were elucidated on the basis of spectroscopic data.
CONCLUSIONS:
The configuration of 1 was elucidated by single-crystal X-ray diffraction crystallography.
