|Source:||The herbs of Psidium guajava|
|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: 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||2.4015 mL||12.0077 mL||24.0154 mL||48.0307 mL||60.0384 mL|
|5 mM||0.4803 mL||2.4015 mL||4.8031 mL||9.6061 mL||12.0077 mL|
|10 mM||0.2402 mL||1.2008 mL||2.4015 mL||4.8031 mL||6.0038 mL|
|50 mM||0.048 mL||0.2402 mL||0.4803 mL||0.9606 mL||1.2008 mL|
|100 mM||0.024 mL||0.1201 mL||0.2402 mL||0.4803 mL||0.6004 mL|
Zhongguo Zhong Yao Za Zhi. 2014 Mar;39(6):1024-9.
|Chemical constituents of leaves of Psidium guajava.[Pubmed: 24956844]|
|To study the chemical constituents of the 95% ethanol extract of Psidium guajava. Compounds were separated by using a combination of various chromatographic methods including silica gel, D101 macroporous resin, ODS, Sephadex LH-20 and preparative HPLC. Their structures were elucidated by physicochemical properties and spectral data Eighteen compounds were isolated and identified as (+) -globulol (1), clovane-2beta, 9alpha-diol (2), 2beta-acetoxyclovan-9alpha-ol (3), (+) -caryolane-1 ,9beta-diol (4), ent-T-muurolol (5), clov-2-ene-9alpha-ol (6), isophytol (7), tamarixetin (8), gossypetin (9), quercetin (10), kaempferol (11), guajaverin (12), avicularin (13), Chrysin 6-C-glucoside (14), 3'-O-methyl-3, 4-methylenedioxyellagic acid 4'-O-beta-D-glucopyranoside (15), p-hydroxy-benzoic acid (16), guavinoside A (17) and guavinoside B (18). Compounds 2-9 and 14-16 were isolated from this plant for the first time. The ethanol extract showed 61.3% inhibition against the proliferation of colon cancer cell line SW480.|