|Source:||The aerial parts of Polygonum glabrum.|
|Biological Activity or Inhibitors:||1. 3-Hydroxy-5-methoxystilbene exhibits in vitro anti-mycobacterium activity against Mycobacterium tuberculosis H37Ra with IC50 values of 3.33 ug/mL in dormant phase and 3.33 ug/mL in active phase.
|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.
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||4.4189 mL||22.0946 mL||44.1891 mL||88.3783 mL||110.4728 mL|
|5 mM||0.8838 mL||4.4189 mL||8.8378 mL||17.6757 mL||22.0946 mL|
|10 mM||0.4419 mL||2.2095 mL||4.4189 mL||8.8378 mL||11.0473 mL|
|50 mM||0.0884 mL||0.4419 mL||0.8838 mL||1.7676 mL||2.2095 mL|
|100 mM||0.0442 mL||0.2209 mL||0.4419 mL||0.8838 mL||1.1047 mL|
Nat Prod Res. 2015;29(22):2080-6
|A new butenolide cinnamate and other biological active chemical constituents from Polygonum glabrum.[Pubmed: 25643642 ]|
|Phytochemical investigation of the methanol extract of the aerial parts of Polygonum glabrum afforded one new natural product (-)-2-methoxy-2-butenolide-3-cinnamate (1) along with six known compounds, β-hydroxyfriedalanol (2), 3-hydroxy-5-methoxystilbene (3), (-) pinocembrin (4), sitosterol-(6'-O-palmitoyl)-3-O-β-D-glucopyranoside (5), (-) pinocembrin-5-methyl ether (6) and sitosterol-3-O-β-D-glucopyranoside (7). Compound 1 showed promising in vitro anti-HIV-1 activity against primary isolates HIV-1(UG070) (X4, subtype D) and HIV-1(VB59) (R5, subtype C) assayed using TZM-bl cell line with IC50 in the range of 15.68-22.43 μg/mL. The extract showed TI in the range of 19.19-27.37 with IC50 in the range of 10.90-15.55 μg/mL. Compounds 1, 3 and 4 exhibited in vitro anti-mycobacterium activity against Mycobacterium tuberculosis H37Ra with IC50 values of 1.43, 3.33 and 1.11 μg/mL in dormant phase and 2.27, 3.33 and 1.21 μg/mL in active phase, respectively. Compound 4 was found to be the most active antiproliferative with IC50 values of 1.88-11.00 μg/mL against THP-1, A549, Panc-1, HeLa and MCF7 cell lines.|