Desmethylxanthohumol
(Synonyms: 去甲黄腐醇) 目录号 : GC62927
Desmethylxanthohumol 是一种从啤酒花球果 (Humulus lupulus L.) 中分离的烯丙基化羟基查耳酮。Desmethylxanthohumol 是一种强大的凋亡 (apoptosis) 诱导剂，具有抗血浆，抗增殖和抗氧化的生物活性。
Cas No.:115063-39-3
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Desmethylxanthohumol is a prenylated hydroxychalcone isolated from hop cones (Humulus lupulus L.). Desmethylxanthohumol is a powerful apoptosis inducing agent. Desmethylxanthohumol has antiplasmodial, antiproliferative, and antioxidant bioactivities[1][2].
[1]. Yuou Teng, et al. Synthesis and Antioxidant Evaluation of Desmethylxanthohumol Analogs and Their Dimers. Eur J Med Chem. 2017 Jan 5;125:335-345.
[2]. Reinhard A.Diller, et al. 71-Desmethylxanthohumol from Hops, Chemistry and Biological Effects. Beer in Health and Disease Prevention, 2009, Pages 703-709.
| Cas No. | 115063-39-3 | SDF | |
| 别名 | 去甲黄腐醇 | ||
| 分子式 | C20H20O5 | 分子量 | 340.37 |
| 溶解度 | 储存条件 | Store at 2-8°C,protect from light | |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.938 mL | 14.6899 mL | 29.3798 mL |
| 5 mM | 0.5876 mL | 2.938 mL | 5.876 mL |
| 10 mM | 0.2938 mL | 1.469 mL | 2.938 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Synthesis and antioxidant evaluation of Desmethylxanthohumol analogs and their dimers
Eur J Med Chem 2017 Jan 5;125:335-345.PMID:27688188DOI:10.1016/j.ejmech.2016.09.024.
Four ring-closed analogs of natural prenylated chalcone Desmethylxanthohumol (1) and their dimers were synthesized from the commercially available 1-(2,4,6-trihydroxyphenyl)ethan-1-one in five and six linear steps, respectively. The structures of the eight new derivatives were confirmed using1H NMR, 13C NMR and HRMS. The antioxidant activity of the new chalcone derivatives were evaluated in a PC12 cell model of H2O2-induced oxidative damage. The SAR studies suggested that the catechol motif was essential for the antioxidant activity. Moreover, the dimers showed better antioxidant activity than their corresponding monomers did. Among them, compound 14d was the most potent and increased PC12 cell viability from 25% to 85%. Flow cytometric analysis showed that compound 14d, the most potent compound, decreased the apoptotic PC12 cell percentage and significantly reduced the LDH release and 8-OHdG generation but increased the GSH levels in H2O2-treated PC12 cells. Furthermore, compound 14d had a higher FRAP value than that of gallic acid. It also reduced the stable ABTS+ free radical with a lower EC50 than that of gallic acid.
Formation and accumulation of alpha-acids, beta-acids, Desmethylxanthohumol, and xanthohumol during flowering of hops (Humulus lupulus L.)
J Agric Food Chem 2003 Jul 16;51(15):4436-41.PMID:12848522DOI:10.1021/jf034263z.
Important secondary metabolites, present in hops (Humulus lupulus L.), include alpha-acids and beta-acids, which are essential for the brewing of beer, as well as the prenylated chalcones, Desmethylxanthohumol, and xanthohumol, which exhibit interesting bioactive properties. Their formation and accumulation in five selected hop varieties, Wye Challenger, Wye Target, Golding, Admiral, and Whitbread Golding Variety, were quantitatively monitored by high-performance liquid chromatography using UV detection. All target compounds were present from the onset of flowering, not only in female hop cones but also in male inflorescences, albeit in low concentrations. During development from female inflorescences to cones, levels of alpha-acids, beta-acids, Desmethylxanthohumol, and xanthohumol gradually increased, while each hop variety exhibited individual accumulation rates. Furthermore, these compounds were present in leaves of fully grown hops as well. The study demonstrated that key compounds for flavor and potential beneficial health effects associated with beer not only reside in the glandular lupulin structures but also are distributed over various parts of the hop plant.
Relevance of organic farming and effect of climatological conditions on the formation of alpha-acids, beta-acids, Desmethylxanthohumol, and xanthohumol in hop (Humulus lupulus L.)
J Agric Food Chem 2007 Jan 10;55(1):61-6.PMID:17199314DOI:10.1021/jf061647r.
The concentrations of alpha-acids, beta-acids, Desmethylxanthohumol, and xanthohumol were monitored in the hop varieties Admiral (A), Wye Challenger (WC), and First Gold (FG) during the harvest seasons of 2003 through 2005. Hops grown under an organic regimen were compared to plants grown conventionally in hop fields in close vicinity. The concentrations of the key compounds depended very much on climatological conditions showing, in general, highest levels in poorest weather conditions (2004). Of the three varieties studied, FG was the only one showing a clear trend for higher concentrations of secondary metabolites under organic growing conditions than under conventional farming conditions. Cultivation of A and WC seems to be very sensitive to climatic conditions and environmental stresses caused by pests and diseases, thereby leading to various results. WC proved to be a rich source of bioactive chalcones, particularly Desmethylxanthohumol.
Dynamic residual complexity of natural products by qHNMR: solution stability of Desmethylxanthohumol
Planta Med 2009 Jun;75(7):757-62.PMID:19145555DOI:10.1055/s-0028-1112209.
The use of chromatographic assays to assess the residual complexity of materials that are purified from natural sources by chromatographic means is, in a sense, a case of the fox watching the henhouse. Beside their static residual complexity, which is intrinsic to their metabolic origin, biologically active natural materials can also be involved in chemical reactions that lead to dynamic residual complexity. The present study examines the dynamics of the hop prenylphenol, Desmethylxanthohumol (DMX), by means of quantitative (1)H-NMR (qHNMR) in a setting that mimics IN VITRO and physiological conditions. The experiments provide a comprehensive, time-resolved, and mechanistic picture of the spontaneous isomerization of DMX into congeneric flavanones, including their (1)H/(2)D isotopomers. Formation of the potent phytoestrogen, 8-prenylnaringenin (8PN), suggests that measurable estrogenic activity even of high-purity DMX is an artifact. Together with previously established qHNMR assays including purity activity relationships (PARs), dynamic qHNMR assays complement important steps of the post-isolation evaluation of natural products. Thus, qHNMR allows assessment of several unexpected effects that potentially break the assumed linkage between a single chemical entity (SCE) and biological endpoints.
Prenylated chalcones and flavonoids for the prevention and treatment of cancer
Nutrition 2016 Nov-Dec;32(11-12):1171-8.PMID:27238957DOI:10.1016/j.nut.2016.03.020.
Prenylated chalcones and flavonoids gained increasing attention not only in nutrition but also in cancer prevention because of their biological and molecular activities in humans, which have been extensively investigated in vitro or in preclinical studies. These naturally occurring compounds exhibit antioxidant effects, modulate metabolism of carcinogens by inhibition of distinct phase 1 metabolic enzymes and activation of phase 2 detoxifying enzymes, and display antiinflammatory properties. In particular, their potential to prevent proliferation of tumor cells is noteworthy. Some representatives of this subclass of secondary plant compounds exert pronounced anti-tumor-initiating capacities and directly inhibit growth of cancer cells, whereas their toxic effects on healthy tissues are remarkably low. These promising pharmacologic characteristics are countered by low ingestion, low bioavailability, and little knowledge of their metabolism. This review focuses on the great potential of these plant- and nutrient-derived compounds for cancer prevention and therapy. Provided here is a comprehensive summary of the current knowledge and inherent modes of action, focusing on the prenylated chalcones xanthohumol, Desmethylxanthohumol, and xanthogalenol, as well as the prenylated flavonoids isoxanthohumol, 6-prenylnaringenin, 8-prenylnaringenin, 6-geranylnaringenin, 8-geranylnaringenin, and pomiferin.