|Source:||The herbs of Andrographis paniculata|
|Biological Activity or Inhibitors:||1. 5-Hydroxy-7,8-dimethoxyflavanone shows anti-inflammatory activity, it can significantly decrease TNF-alpha, IL-6, macrophage inflammatory protein-2 (MIP-2), and nitric oxide (NO) secretions from LPS/IFN-gamma stimulated RAW 264.7 cells.
2. (2S)-5-Hydroxy-7,8-dimethoxyflavanone is weakly active against human nasopharyngeal carcinoma cell line (KB) with IC50 value at 12.86 ug/ml.
|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||3.33 mL||16.65 mL||33.3 mL||66.6001 mL||83.2501 mL|
|5 mM||0.666 mL||3.33 mL||6.66 mL||13.32 mL||16.65 mL|
|10 mM||0.333 mL||1.665 mL||3.33 mL||6.66 mL||8.325 mL|
|50 mM||0.0666 mL||0.333 mL||0.666 mL||1.332 mL||1.665 mL|
|100 mM||0.0333 mL||0.1665 mL||0.333 mL||0.666 mL||0.8325 mL|
Parasitol Res. 2014 Sep;113(9):3381-92. Epub 2014 Jul 13.
|cture–function relationships of inhibition of mosquito cytochrome P450 enzymes by flavonoids of Andrographis paniculata.[Pubmed: 25015047]|
|In this study inhibition of the extracts and constituents of Andrographis paniculata Nees. leaves and roots was examined against benzyloxyresorufin O-debenzylation (BROD) of CYP6AA3 and CYP6P7. Four purified flavones (5,7,4′-trihydroxyflavone, 5-hydroxy-7,8-dimethoxyflavone, 5-hydroxy-7,8,2′,3′-tetramethoxyflavone, and 5,4′-dihydroxy-7,8,2′,3′-tetramethoxyflavone), one flavanone (5-Hydroxy-7,8-dimethoxyflavanone) and a diterpenoid (14-deoxy-11,12-didehydroandrographolide) containing inhibitory effects toward both enzymes were isolated from A. paniculata. Structure–function relationships were observed for modes and kinetics of inhibition among flavones, while diterpenoid and flavanone were inferior to flavones.|
J Agric Food Chem. 2010 Feb 24;58(4):2505-12.
|Anti-inflammatory activity of new compounds from Andrographis paniculata by NF-kappaB transactivation inhibition.[Pubmed: 20085279]|
|Previous studies showed that the ethyl acetate (EtOAc) fraction of Andrographis paniculata (AP) possessed anti-inflammatory activity. This study further isolated these active compounds from bioactivity-guided chromatographic fractionation and identified eight pure compounds. Reporter gene assay indicated that 5-hydroxy-7,8-dimethoxyflavone (1), 5-Hydroxy-7,8-dimethoxyflavanone (2), a mix of beta-sitosterol (3a) and stigmasterol (3b), ergosterol peroxide (4), 14-deoxy-14,15-dehydroandrographolide (5), and a new compound, 19-O-acetyl-14-deoxy-11,12-didehydroandrographolide (6a), significantly inhibited the transcriptional activity of NF-kappaB in LPS/IFN-gamma stimulated RAW 264.7 macrophages (P < 0.05). The two most abundant compounds, 14-deoxy-11,12-didehydroandrographolide (7) and andrographolide (8).|
Nat Prod Res. 2005 Apr;19(3):223-30.
|A new bis-andrographolide ether from Andrographis paniculata nees and evaluation of anti-HIV activity.[Pubmed: 15702635]|
|Novel bis-andrographolide ether (1) and six known compounds andrographolide, 14-deoxy-11,12-didehydroandrographolide, andrograpanin, 14-deoxyandrographolide, (+/-)-5-Hydroxy-7,8-dimethoxyflavanone, and 5-hydroxy-7,8-dimethoxyflavone have been isolated from the aerial parts of Andrographis paniculata and their structures were established by spectral data. All the isolates were tested for the anti-HIV and cytotoxic activity.|