|Source:||The roots of Biondia hemsleyana.|
|Biological Activity or Inhibitors:|
|Solvent:||Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, 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.
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|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||1.41 mL||7.0502 mL||14.1004 mL||28.2008 mL||35.251 mL|
|5 mM||0.282 mL||1.41 mL||2.8201 mL||5.6402 mL||7.0502 mL|
|10 mM||0.141 mL||0.705 mL||1.41 mL||2.8201 mL||3.5251 mL|
|50 mM||0.0282 mL||0.141 mL||0.282 mL||0.564 mL||0.705 mL|
|100 mM||0.0141 mL||0.0705 mL||0.141 mL||0.282 mL||0.3525 mL|
Chemical Research in Chinese Universities,2003,24(3):436-41.
|Chemical Constituents from the Roots of Biondia Hemsleyana[Reference: WebLink]|
|Nineteen I compounds were isolated from the,ethanol extract of the roots of Biondia hemsleyana (Warb.) Tsiang through. the repeated column chromatography on normal and reversed phase silica gel. By the spectroscopic and chemical evidence, their structures were elucidated as alpha-amyrin-3beta-acetate (1), Lupeol 3-hydroxyoctadecanoate (2), lupeol 3, 5-dihydroxyeicosanoate (3), cycloeucalenol (4), 4-methoxy salicylic aldehyde(5), 4-methoxy salicylic acid(6), isovanillin(7), scopoletin(8), isovanillic acid(9), cleomiscosin A (10), 2-hydroxmethyl-5-methoxylphenyl-O-beta-D-glucopyranoside (11), pregn-4-ene-3, 20-dione (12), neridienone (13), daucosterol(14), pregn-5-ene-3beta, 17alpha, 20alpha-triol-20-O-beta-D-canaropyranoside (15), periplogenin-3-O-beta-D-gluco pyranosyl-(1-->4)-beta-D-cymaropyranoside (16), pregn-5-ene-3beta, 20 (S)-diol-3-O-[2-O-acetyl-beta-D-digitalopyranosyl (1-->4)-beta-D-cymaropyranosyl]-20-O-beta-D-glucopyranosyl-(1-->6)-beta- D-glucopyranosyl-(1-->4)-beta-D-digitalo pyranoside(17), pregn-5-ene-3beta, 20(S)-diol-20-O-alpha-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside(18 , biondianoside C) and pregn-5-ene-3beta, 20(S)-diol-3-O-[beta-D-glucopyranosyl]-20-O-beta-D-glucopyranosyl-(1-->6 )-beta-D-glucopyranoside (19, biondianoside D) respectively. All compounds were isolated from this genus for the first time and 3, 11, 18 and 19 were new compounds among them.|