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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
常温避光保存
- 保质期:
2年
- 库存:
大量现货
- 供应商:
上海钦诚生物
- CAS号:
117-39-5
- 规格:
20mg
中文名称:槲皮素
中文别名:栎精,槲皮黄素
英文名称:Quercetin
英文别名: Flavone, 3,3′,4′,5,7-pentahydroxy- (7CI,8CI); Flavone, 3,4′,5,5′,7-pentahydroxy- (6CI); 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-
1-benzopyran-4-one; 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-benzopyran-4-one; 3,3′,4′,5,7-Pentahydroxyflavone; 3,5,7,3′,4′-Pentahydroxyflavone;
3,5,7-Trihydroxy-2-(3,4-dihydroxyphenyl)-4H-chromen-4-one; 3′-Hydroxykaempferol; C.I. 75670; Corvitin; Cyanidelonon 1522; Korvitin; LDN 0052529;Lipoflavon; Meletin; NSC 57655; NSC 9219; Quercetin; Quercetine; Quercetol; Quertin; Quertine; Sophoretin; Xanthaurine
分子式:C15H10O7
分子量:302.24
CAS号:117-39-5
纯度: HPLC≥98%
外观:黄色结晶粉末
溶解性:不溶于冷水,难溶于热水,溶于碱性水溶液显黄色
熔点: 316.5 °C
沸点: 642.4±55.0 °C | Condition
密度: 1.799±0.06 g/cm3 | Condition: Temp: 20 °C
值: 6.31±0.40 | Condition: Most Acidic Temp: 25 °C
储存条件: 2-8°C,干燥、避光、密封
规格: 20mg 50mg 100mg 500mg 1g 2g等应客户需求包装.
提取来源:豆科植物槐(Sophora flavescens Ait.)的干燥花蕾。
药理药效:槲皮素具有较好的祛痰、止咳作用,并有一定的平喘作用,用于治疗慢性支气管炎。此外还有降低血压、增强毛细血管抵抗力、减少毛细血管脆性、降血脂、扩张冠状动脉、增加冠脉血流量等作用,对冠心病及高血压患者有辅助治疗作用。
用途: 用于含量测定、鉴别、药理实验、活性筛选等.
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文献和实验Flavonoids From Argentine Tagetes (Asteraceae) With Antimicrobial Activity
( 1 ). They are prominent components of citrus fruits and other food sources. Flavonols (quercetin, myricetin, and kaempferol) and flavones (apigenin and luteolin) are the most common phenolics in plant-based foods. Quercetin is also a predominant component of onions
buffer at pH 7, and subsequently measuring the developed absorbance at 450 nm after 30 min. Since the color development is fast for compounds like ascorbic acid, gallic acid, and quercetin but slow for naringin and naringenin, the latter compounds
the erythrocytes and donate electrons to PMRS. We also present results to show the potentiating effect of quercetin, EGCG, EC and catechin on erythrocyte PMRS activity.
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