|Source:||The aerial parts of Piper futokadsura.|
|Biological Activity or Inhibitors:||1. Futokadsurin C can inhibit nitric oxide production by a murine macrophage-like cell line (RAW 264.7), which is activated by lipopolysaccharide and interferon-gamma.
|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||2.8058 mL||14.0288 mL||28.0576 mL||56.1151 mL||70.1439 mL|
|5 mM||0.5612 mL||2.8058 mL||5.6115 mL||11.223 mL||14.0288 mL|
|10 mM||0.2806 mL||1.4029 mL||2.8058 mL||5.6115 mL||7.0144 mL|
|50 mM||0.0561 mL||0.2806 mL||0.5612 mL||1.1223 mL||1.4029 mL|
|100 mM||0.0281 mL||0.1403 mL||0.2806 mL||0.5612 mL||0.7014 mL|
Chem Pharm Bull (Tokyo). 2005 Jan;53(1):121-4.
|Neolignans from Piper futokadsura and their inhibition of nitric oxide production.[Pubmed: 15635246]|
|From a MeOH extract of the aerial part of Piper futokadsura, the tetrahydrofuran lignans, futokadsurin A [(7S,8S,7'S,8'R)-3,4,3'-trimethoxy-4'-hydroxy-7,7'-epoxylignan], futokadsurin B [(7R,8R,7'R,8'S)-3,4-dimethoxy-3',4'-methylenedioxy-7,7'-epoxylignan], and Futokadsurin C [(7R,8R,7'S,8'S)-3,4-methylenedioxy-3',4'-dimethoxy-7,7'-epoxylignan] were isolated, together with nine known neolignans. In addition, L-tryptophan, pellitorine, phytol, elemicin, and 1,2,4-trimethoxyphenyl-5-aldehyde were isolated. The structures of the new compounds were elucidated using spectroscopic methods. These lignans inhibited nitric oxide production by a murine macrophage-like cell line (RAW 264.7), which was activated by lipopolysaccharide and interferon-gamma.|
Phytochemistry Letters, 2015, 13:200-205.
|Aryltetralols from Holostylis reniformis and syntheses of lignan analogous.[Reference: WebLink]|
|Two new lignans, an aryltetralol and its methyl ether analogous, were isolated from Holostylis reniformis (Aristolochiaceae) together with Futokadsurin C and (−)-8′-epi-aristoligone. The latter was also obtained as an enantiomeric mixture by synthesis and was transformed into aryltetralols and aryltetralenes that were subjected to chiral-HPLC separations. The compound structures were determined by spectroscopic methods. Several of these lignans had their antiplasmodial activity (against Plasmodium falciparum, W2 clone, anti-HRPII) and toxicity to mammalian kidney cells (MDL50) evaluated. (−)-Cyclogalgravin and (−)-aristoligol exhibited activity (IC50 ～ 10.8 and 8.4 μM, respectively), the latter exhibited lower toxicity.|