Guaijaverin
Guaijaverin structure
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Common Name | Guaijaverin | ||
|---|---|---|---|---|
| CAS Number | 22255-13-6 | Molecular Weight | 434.350 | |
| Density | 1.9±0.1 g/cm3 | Boiling Point | 828.1±65.0 °C at 760 mmHg | |
| Molecular Formula | C20H18O11 | Melting Point | N/A | |
| MSDS | USA | Flash Point | 296.3±27.8 °C | |
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Inhibitory activity against urease of quercetin glycosides isolated from Allium cepa and Psidium guajava.
Biosci. Biotechnol. Biochem. 74 , 878-880, (2010) Methanolic extracts of edible plants and seaweeds were tested for their inhibitory activity against Jack bean urease. Quercetin-4'-O-beta-D-glucopyranoside was isolated from Allium cepa as a urease inhibitor with an IC(50) value of 190 microM-. Quercetin and ... |
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Guaijaverin -- a plant flavonoid as potential antiplaque agent against Streptococcus mutans.
J. Appl. Microbiol. 101 , 487-495, (2006) The aim of the present study was to investigate the anti-Streptococcus mutans activity and the in vitro effects of subminimal inhibitory concentrations of guaijaverin isolated from Psidium guajava Linn. on cariogenic properties of Strep. mutans.Bioautography-... |
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Benzophenones and flavonoids from Hypericum maculatum and their antioxidant activities.
Nat. Prod. Res. 26 , 1576-1583, (2012) The occurrence of three known benzophenones, namely annulatophenonoside, acetylannulatophenonoside and annulatophenone as well as a flavonol O-glycoside guajaverin in the aerial parts of Hypericum maculatum Crantz was established. In addition, hyperoside, iso... |
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Phenolic derivatives from Ruprechtia polystachya and their inhibitory activities on the glucose-6-phosphatase system.
Chem. Biodivers. 8 , 2126-34, (2011) Two new compounds, 5-methyl-2-(2-methylbutanoyl)phloroglucinol 1-O-(6-O-β-D-apiofuranosyl)-β-D-glucopyranoside (1) and trans-2,3-dihydrokaempferol 3-O-(4-O-sulfo)-α-L-arabinopyranoside (2), together with 14 known flavonoids, trans-dihydrokaempferol 3-O-α-L-ar... |
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Quercetin glycosides in Psidium guajava L. leaves and determination of a spasmolytic principle.
Arch. Med. Res. 25(1) , 11-5, (1994) The traditional herbal remedy from Psidium guajava leaves has been medically proposed in Mexico as effective treatment of acute diarrhea. A methanolic leaf extract was subjected to a bioassay-guided isolation of spasmolytic constituents. Six fractions were se... |
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[Determination of quercetin-3-O-alpha-L-arabinopyranoside in Periploca forrestii by RP-HPLC].
Zhongguo Zhong Yao Za Zhi 35(10) , 1284-6, (2010) The aim of the paper was to develop a HPLC method for the quality control of Periploca forrestii Schltr. The 18 samples were analyzed on a Hypersil C18 column. The mobile phase was methanol-water (33:67) and the flow rate was 1 mL x min(-1). The detection wav... |
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Mutagenic activity promoted by amentoflavone and methanolic extract of Byrsonima crassa Niedenzu.
Toxicology 225(1) , 55-63, (2006) Byrsonima crassa is a plant pertaining to the Brazilian central savannah-like belt of vegetation and popularly used for the treatment of gastric dysfunctions and diarrhoea. The methanol extract contains catechin, tannins, terpenes and flavonoids; both mutagen... |