中文名 | 4',5-二羟基-7-甲氧基黄酮 |
英文名 | 4',5-Dihydroxy-7-methoxyflavone |
别名 | 芫花素 芫花黄素 芫花素(分析标准品) 5,4'-二羥-7-甲氧黃酮 4',5-二羟基-7-甲氧基黄酮 4',5-二羟基-7-甲氧基异黄酮 |
英文别名 | Genkwanin Gengkwanin 4H-Benzopyran-4-one 5,4'-DIHYDROXY-7-METHOXYFLAVONE 4',5-DIHYDROXY-7-METHOXYFLAVONE 4',5-Dihydroxy-7-methoxyflavone 2-(4-Hydroxyphenyl)-5-hydroxy-7-methoxy-4H-1-benzopyran-4-one 4H-1-Benzopyran-4-one,5-hydroxy-2-(4-hydroxyphenyl)-7-Methoxy- 4',5-Dihydroxy-7-methoxyisoflavone 5,4'-Dihydroxy-7-methoxyisoflavone |
CAS | 437-64-9 |
化学式 | C16H12O5 |
分子量 | 284.26 |
InChI | InChI=1/C16H12O5/c1-20-11-6-12(18)16-13(19)8-14(21-15(16)7-11)9-2-4-10(17)5-3-9/h2-8,17-18H,1H3 |
密度 | 1.420 |
熔点 | 290-292°C |
沸点 | 546.5±50.0 °C(Predicted) |
溶解度 | 丙酮 (非常轻微,超声处理),DMSO (轻微),甲醇 (轻微,加热) |
酸度系数 | 6.36±0.40(Predicted) |
存储条件 | Keep in dark place,Sealed in dry,2-8°C |
稳定性 | 吸湿性 |
外观 | 粉末 |
颜色 | Orange |
BRN | 292549 |
物化性质 | 溶于热甲醇、DMSO等溶剂。 来源于瑞香科植物芫花 Daphne genkwa Sieb. et Zucc. 花蕾 |
MDL号 | MFCD00017452 |
体外研究 | Cell viability analysis shows that Genkwanin does not affect the cell viability up to a concentration of 50 μM. Genkwanin inhibits the LPS-induced production of NO in a concentration-dependent manner. iNOS only expresses in the present of external stimulus. Genkwanin could not significantly affect the activity of iNOS. The effect of Genkwanin on the production of proinflammatory cytokines is examined. Genkwanin suppresses the productions of TNF-a, IL-1b and IL-6 in LPS stimulated RAW264.7 macrophages in a concentration-dependent manner. Genkwanin significantly suppresses the AP-1 signaling pathway but has little effect on the NF-kB signaling pathway. It is indicated that Genkwanin suppresses the phosphorylation of p38 and JNK in a concentration-dependent manner, but little affects ERK1/2 phosphorylation. Originally identified as an immediate early gene, MKP-1 is then found to be a dual specificity phosphatase acting as a negative regulator of ERK1/2, JNK and p38 MAPK activities, with predominant effects on the latter two. Pretreatment with Genkwanin markedly up-regulates the expression of MKP-1 without affecting MKP-1 mRNA. |
危险品标志 | Xn - 有害物品 |
风险术语 | R36/37/38 - 刺激眼睛、呼吸系统和皮肤。 R22 - 吞食有害。 |
安全术语 | S26 - 不慎与眼睛接触后,请立即用大量清水冲洗并征求医生意见。 S36 - 穿戴适当的防护服。 S24/25 - 避免与皮肤和眼睛接触。 S22 - 切勿吸入粉尘。 S37 - 戴适当手套。 |
海关编号 | 29329990 |
参考资料 展开查看 | 1. [IF=6.576] Junkun Pan et al."Inhibition of Dipeptidyl Peptidase-4 by Flavonoids: Structure–Activity Relationship, Kinetics and Interaction Mechanism."Frontiers in Nutrition. 2022; 9: 892426 |
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