ent-kaurane-3,16,17-triol
Kaurane-3,16,17-triol,ent-kaurane-3-oxo-16α,17-diol,and ent-16α,17-dihydroxyatisan-
3-one are three kinds of toxic diterpenoids isolated from the roots of genus Euphorbia.
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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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Acta Pharmaceutica Sinica, 2007, 42(1):58-60.
A new diterpenoid from Fritillaria anhuiensis.[Reference:
WebLink]
The aim of this study was to look for the chemical constituents of the bulbs of Fritillaria anhuiensis S. C. Chen et S. E. Yin.
METHODS AND RESULTS:
The bulbs of Fritillaria anhuiensis were extracted with 95% EtOH at reflux. Isolation and purification were performed by silica gel column chromatography. Structures of pure compounds were established on the basis of spectral analysis. Three compounds were obtained and identified as 12,15-epoxy-8(17), 13-labdadien-19-ol (1), ent-3beta-acetoxy-kauran-16beta, 17-diol (2), ent-kaurane-3beta, 16beta, 17-triol (ent-kaurane-3,16,17-triol, 3).
CONCLUSIONS:
Compound 1 is a new labdane-type diterpenoid. Compounds 2 and 3 were obtained from Fritillaria anhuiensis for the first time.
