|Source:||The whole plants of Viola yedoensis.|
|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: firstname.lastname@example.org
|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||1.871 mL||9.3551 mL||18.7101 mL||37.4202 mL||46.7753 mL|
|5 mM||0.3742 mL||1.871 mL||3.742 mL||7.484 mL||9.3551 mL|
|10 mM||0.1871 mL||0.9355 mL||1.871 mL||3.742 mL||4.6775 mL|
|50 mM||0.0374 mL||0.1871 mL||0.3742 mL||0.7484 mL||0.9355 mL|
|100 mM||0.0187 mL||0.0936 mL||0.1871 mL||0.3742 mL||0.4678 mL|
Chem Pharm Bull (Tokyo). 2003 Oct;51(10):1204-7.
|Flavone C-glycosides from Viola yedoensis MAKINO.[Pubmed: 14519932]|
|A new flavone C-glycoside, apigenin 6-C-alpha-L-arabinopyranosyl-8-C-beta-L-arabinopyranoside, has been isolated from Viola yedoensis together with the known compounds, apigenin 6,8-di-C-alpha-L-arabinopyranoside, apigenin 6-C-alpha-L-arabinopyranosyl-8-C-beta-D-glucopyranoside (isoschaftoside), apigenin 6-C-beta-D-glucopyranosyl-8-C-alpha-L-arabinopyranoside (schaftoside), apigenin 6-C-beta-D-glucopyranosyl-8-C-beta-L-arabinopyranoside (neoschaftoside), apigenin 6,8-di-C-beta-D-glucopyranoside (vicenin-2), Apigenin 6-C-alpha-L-arabinopyranosyl-8-C-beta-D-xylopyranoside, apigenin 6-C-beta-D-xylopyranosyl-8-C-alpha-L-arabinopyranoside, luteolin 6-C-beta-D-glucopyranoside (isoorientin) and luteolin 6-C-alpha-L-arabinopyranosyl-8-C-beta-D-glucopyranoside (isocarlinoside). The structures were determined by spectroscopic methods and new or revised (1)H- and (13)C-NMR spectral assignments are proposed for some compounds.|
Chinese Journal of Experimental Traditional Medical Formulae, 2013, 19(21):77-81.
|Chemical Constituents of Viola yedoensis and Their Antioxidant Activity.[Reference: WebLink]|
|To investigate the chemical constituents of Viola yedoensis and their antioxidant activity.Method: A systematic isolation was performed by various column chromatography with the n-butanol fraction of the ethanolic extract of the herb.Result: Eleven compounds were isolated and identified as kaempferol-3-O-β-D-sophorosyl-7-O-α-L-rhamnopyrano-side(1),kaempferol-3,7-di-O-α-L-rhamnopyranoside(2),apigenin-6,8-di-C-β-D-glucopyranoside(3),adenosine(4),esculetin(5),Apigenin 6-C-alpha-L-arabinopyranosyl-8-C-beta-D-xylopyranoside(6),apigenin-6-C-β-D-glucopyranosyl-8-C-α-L-arabinopyranoside(7),apigenin-6-C-β-D-glucopyranosyl-8-C-β-D-xylopyranoside(8),apigenin-6,8-di-C-α-L-arabinopyranoside(9),apigenin-6-C-β-D-glucopyranosyl-8-C-β-L-arabinopyranoside(10) and kaempferol-3-O-β-D-glucopyranosyl-7-O-α-L-rhamnopyranoside(11),respectively.All compounds were evaluated for antioxidant capacity against DPPH radicals,and compounds 1-5 and 11 showed antioxidant activities.Conclusion: Compound 2 was reported from Viola yedoensis for the first time,and compounds 1 and 8 were the first time to be isolated from the genus Viola.|