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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
2-8℃
- 保质期:
见包装
- 英文名:
Rhein
- 库存:
大量现货
- 供应商:
上海研谨生物
- CAS号:
478-43-3
- 规格:
20mg
大黄酸
分析标准品,HPLC≥98%
Rhein
CAS号:478-43-3
分子式:C15H8O6
分子量:284.22
MDL:MFCD00009618
|
货号 |
规格/参数/品牌 |
价格 |
货期 |
|
YJ-B20245-20mg |
分析标准品,HPLC≥98% |
¥200.00 |
现货 |
|
YJ-B20245-100mg |
分析标准品,HPLC≥98% |
¥600.00 |
现货 |
|
YJ-B20245-1g |
分析标准品,HPLC≥98% |
¥2000.00 |
现货 |
|
JS31389-1g |
98% |
¥198.00 |
现货 |
|
JS31389-5g |
98% |
¥465.00 |
现货 |
|
JS31389-25g |
98% |
¥1220.00 |
现货 |
|
A10333-20mg |
分析标准品,含量94.6%,可溯源 |
¥340.00 |
现货 |
|
JT91614-1ml买5赠1 |
10mM in DMSO |
¥299.00 |
现货 |
产品介绍
熔点:≥300℃
沸点:346.72℃
外观:黄色至橙色粉末
溶解性:不溶于水,能溶于吡啶、碳酸氢钠水溶液,微溶于乙醇、苯、氨仿、乙mi和石油mi。
储存条件:2-8℃
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文献和实验参考文献(76篇)
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49. [IF=19.924] Liguo Jin et al."Interface Polarization Strengthened Microwave Catalysis of MoS2/FeS/Rhein for the Therapy of Bacteria-Infected Osteomyelitis."ADVANCED FUNCTIONAL MATERIALS
48. [IF=0.986] Ji-le Lan et al."Q-marker Prediction Analysis of Rhubarb in Fengyin Decoction Based on Fingerprint and Network Pharmacology:."Nat Prod Commun. 2021;16(8):
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46. [IF=2.104] Jingjing Wang et al."A novel β-cyclodextrin-rhein conjugate for improving the water solubility and bioavailability of rhein."Carbohyd Res. 2020 Apr;490:107958
45. [IF=2.896] Tianming Wang et al."Quantification of prostaglandins E2 and D2 using liquid chromatography-tandem mass spectrometry in a mouse ear edema model."Anal Methods-Uk. 2020 Jun;12(22):2865-2871
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3. 李红英 向极钎 龙澜 等. HPLC法测定大黄药材中5种游离蒽醌的含量[J]. 安徽农业科学 2013(12):5278-5279.
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1. 支旭然 董占军 吴茵 等. HPLC同时测定肾康注射液中的4种成分[J]. 华西药学杂志 2017(03):297-299.
苷元,其结构不同,因而酸性强弱也不同。大黄酸连有-COOH,酸性最强;大黄素连有β-OH,酸性第二;芦荟大黄素连有苄醇-OH,酸性第三;大黄素甲醚和大黄酚均具有1,8-二酚羟基,前者连有-OCH3和-CH3,后者只连有-CH3,因而后者酸性排在第四位。 实验目的和要求 1.学习缓冲纸色谱的基本操作技术,并能根据色谱结果,设计液液萃取法分离混合物的实验方案。 2.掌握PH梯度法的原理及操作技术。 3.通过磷酸氢钙柱色谱分离大黄酚及大黄素甲醚的试验,进一步熟悉柱色谱操作技术。 4.学习
、胸腹胀、大便秘结等症。狭叶番泻树的叶含番泻叶苷、芦荟大黄素双蒽酮苷、大黄酸葡萄糖苷和少量大黄酸、芦荟大黄素等。尖叶番泻叶含蒽醌类衍生物。
。忌连作。用种子繁殖时,育苗移栽或直播均可。春季或秋季播种,而以秋播为好。如用子芽繁殖,可于收获根茎时切取子芽种植。用种子或子芽育成的幼苗均在次年秋季定植。栽后3~4年,在茎叶枯萎时采挖根状茎及根,阴干或烘干即成商品。主要病虫害有大黄轮纹病、大黄炭疽病及金花虫等。青海、甘肃等地主产掌叶大黄和唐古特大黄,商品称“北大黄”。四川、贵州、云南等地主产药用大黄,商品称“南大黄”。 大黄根状茎含大黄酸、大黄素、大黄酚、芦荟大黄素、大黄素甲醚等游离蒽醌衍生物,均无致泻作用。另含以上物质的葡萄
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