|Source:||The whole plants of Gentiana urnula.|
|Biological Activity or Inhibitors:|
|Solvent:||Pyridine, Methanol, Ethanol, etc.|
|Storage:||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: email@example.com
|After receiving:||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.|
|1 mg||5 mg||10 mg||20 mg||25 mg|
|1 mM||1.9514 mL||9.7569 mL||19.5137 mL||39.0274 mL||48.7843 mL|
|5 mM||0.3903 mL||1.9514 mL||3.9027 mL||7.8055 mL||9.7569 mL|
|10 mM||0.1951 mL||0.9757 mL||1.9514 mL||3.9027 mL||4.8784 mL|
|50 mM||0.039 mL||0.1951 mL||0.3903 mL||0.7805 mL||0.9757 mL|
|100 mM||0.0195 mL||0.0976 mL||0.1951 mL||0.3903 mL||0.4878 mL|
Acta Botanica Yunnanica,1994,16(4):417-423.
|Five iridoidal glycocosides from Gentiana urnula.[Reference: WebLink]|
|Five new iridoidal glycosides, gentiournoside A, gentiournoside B, gentiournoside C, Gentiournoside D, gentiournoside E were isolated from the whole herb of Gentiana urnula. Their structures were elucidated mainly by spectral methods. Among which gentiournoside A, gentiournoside B, gentiournoside C are bis-iridoidal glycosides while Gentiournoside D and gentiournoside E are loganin type ones. It is noted that all the glycosides possess a 2,3-dihydroxy benxoyl benxoyl unit or its derivative in the molecule.|