481-46-9
基本信息
银杏黄酮甙
银杏黄酮苷
银杏素标准品
银杏素对照品
银杏素, >98%
白果双黄酮(银杏双黄酮
银杏双黄酮/白果双黄酮
银杏双黄酮, 来源于银杏叶
银杏双黄酮,银杏黄素,银杏素
Ginkgetin, >98%
GINKGETIN USP/EP/BP
GINKGETIN(RG)(PLEASE CALL)
Ginkgetin, 98%, from Ginkgo biloba L.
4',5,5'',7-Tetrahydroxy-4''',7''-dimethoxy-8,3'''-biflavone
5,7-Dihydroxy-8-[2-methoxy-5-(5-hydroxy-7-methoxy-4-oxo-4H-1-benzopyran-2-yl)phenyl]-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one
5,7-Dihydroxy-8-[5-(5-hydroxy-7-methoxy-4-oxo-4H-1-benzopyran-2-yl)-2-methoxyphenyl]-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one
4H-1-Benzopyran-4-one,5,7-dihydroxy-8-[5-(5-hydroxy-7-methoxy-4-oxo-4H-1-benzopyran-2-yl)-2-methoxyphenyl]-2-(4-hydroxyphenyl)-
物理化学性质
外观性状 | 可溶于甲醇、乙醇、DMSO等有机溶剂,来源于银杏。 |
熔点 | 297 °C(Solv: acetone (67-64-1)) |
沸点 | 863.7±65.0 °C(Predicted) |
密度 | 1.506±0.06 g/cm3(Predicted) |
储存条件 | -20°C储存 |
溶解度 | DMSO:64.0(Max Conc. mg/mL);112.97(Max Conc. mM) DMSO:PBS (pH 7.2) (1:7):0.12(Max Conc. mg/mL);0.21(Max Conc. mM) |
酸度系数(pKa) | 6.18±0.40(Predicted) |
形态 | 粉末 |
颜色 | 淡黄色 |
LogP | 4.450 (est) |
常见问题列表
Wnt 5.92 μM (IC 50 ) |
Ginkgetin (2.5-20 μM; 48 h) inhibits the growth of Daoy and D283 cell lines, and induces G
2
/M cell cycle arrest in Daoy cells.
Ginkgetin (20-40 μM; 24 h) significantly activates the apoptosis of osteosarcoma cells in a concentration-dependent manner.
Ginkgetin (10-20 μM; 3-24 h) down-regulated the expression of Wnt target genes without affecting the expression of β-catenin in medulloblastoma cells.
Ginkgetin (1-10 μM; 24 or 48 h) significantly inhibits the VEGF-induced endothelial cell proliferation, migration, and wound recovery in a concentration-dependent manner.
Ginkgetin (5-10 μM; 48 h) induces autophagy responsible for cell death in A549.
Cell Viability Assay
Cell Line: | Daoy and D283 cell lines |
Concentration: | 2.5, 5, 10, 20 μM |
Incubation Time: | 48 hours |
Result: | Inhibited the cell growth, with IC 50 s of 14.65 and 15.81 μM for Daoy and D283 cells, respectively. |
Apoptosis Analysis
Cell Line: | Osteosarcoma cells |
Concentration: | 20, 30, 40 μM |
Incubation Time: | 24 hours |
Result: | Markedly induced the apoptosis of osteosarcoma cells in a concentration-dependent manner. |
Cell Cycle Analysis
Cell Line: | Daoy cells |
Concentration: | 2.5, 5, 10, 20 μM |
Incubation Time: | 24 hours |
Result: | Increased G 2 /M phase, compared with that of control, indicating a G 2 /M cell phase arrest. |
Cell Cycle Analysis
Cell Line: | Daoy and D283 cell lines |
Concentration: | 10, 20 μM |
Incubation Time: | 3, 6, 12, 24 hours |
Result: |
Attenuated the expression of Wnt target genes, Axin2, cyclin D1 and survivin at 20 μM for 24 h in Daoy cells.
Unaffected the level of total β-catenin and diminished the level of β-catenin phosphorylation in a time- and concentration-dependent manner. |
Ginkgetin (25-100 mg/kg; i.p. 2 hours after the onset of ischemia) exerts anti-inflammatory effects on cerebral ischemia/reperfusion-induced injury in a rat model via the TLR4/NF-κB signaling pathway.
Ginkgetin (30 mg/kg; intragastrically once per day for 42 d) suppresses tumor growth in A549 cells bearing nude mice.
Animal Model: | Male Sprague-Dawley rats (200-220 g) |
Dosage: | 25, 50, 100 mg/kg |
Administration: | I.p. 2 hours after the onset of ischemia |
Result: |
Reduced the neurological deficit score.
Suppressed the expression of NF-κB, TLR4 and IκBαin ischemic penumbra cortex, and inhibited the degradation of IκBα. Decreased the expressions of ICAM-1, COX-2, and iNOS. Downregulated downstream inflammatory factor PGE2 and TNF-α expression. Decreased IL-1β, IL-6, IL-8, and IL-10 protein expression. |