Info: Read More
  • 中药标准品生产商,产品定制服务
  • 2',6'-二羟基-4,4'-二甲氧基查耳酮

    2',6'-Dihydroxy-4,4'-dimethoxychalcone

    2',6'-二羟基-4,4'-二甲氧基查耳酮
    产品编号 CFN70304
    CAS编号 20621-49-2
    分子式 = 分子量 C17H16O5 = 300.3
    产品纯度 >=98%
    物理属性 Powder
    化合物类型 Chalcones
    植物来源 The herbs of Cephalotaxus sinensis
    ChemFaces的产品在影响因子大于5的优秀和顶级科学期刊中被引用
    提供自定义包装
    产品名称 产品编号 CAS编号 包装 QQ客服
    2',6'-二羟基-4,4'-二甲氧基查耳酮 CFN70304 20621-49-2 1mg QQ客服:2056216494
    2',6'-二羟基-4,4'-二甲氧基查耳酮 CFN70304 20621-49-2 5mg QQ客服:2056216494
    2',6'-二羟基-4,4'-二甲氧基查耳酮 CFN70304 20621-49-2 10mg QQ客服:2056216494
    2',6'-二羟基-4,4'-二甲氧基查耳酮 CFN70304 20621-49-2 20mg QQ客服:2056216494
    存储与注意事项
    1. 在您收到产品后请检查产品。如无问题,请将产品存入冰霜并且样品瓶保持密封,产品可以存放长达24个月(2-8摄氏度)。

    2. 只要有可能,产品溶解后,您应该在同一天应用于您的实验。 但是,如果您需要提前做预实验,或者需要全部溶解,我们建议您将溶液以等分试样的形式存放在-20℃的密封小瓶中。 通常,这些可用于长达两周。 使用前,打开样品瓶前,我们建议您将产品平衡至室温至少1小时。

    3. 需要更多关于溶解度,使用和处理的建议? 请发送电子邮件至:service@chemfaces.com
    订购流程
  • 1. 在线订购
  • 请联系我们QQ客服

  • 2. 电话订购
  • 请拨打电话:
    027-84237683 或 027-84237783

  • 3. 邮件或传真订购
  • 发送电子邮件到: manager@chemfaces.com 或
    发送传真到:027-84254680

  • 提供订购信息
  • 为了方便客户的订购,请需要订购ChemFaces产品的客户,在下单的时候请提供下列信息,以供我们快速为您建立发货信息。
  •  
  • 1. 产品编号(CAS No.或产品名称)
  • 2. 发货地址
  • 3. 联系方法 (联系人,电话)
  • 4. 开票抬头 (如果需要发票的客户)
  • 5. 发票地址(发货地址与发票地址不同)
  • 发货时间
    1. 付款方式为100%预付款客户,我们将在确认收到货款后当天或1-3个工作日发货。

    2. 付款方式为月结的客户,我们承诺在收到订单后当天或1-3个工作日内发货。

    3. 如果客户所需要的产品,需要重新生产,我们有权告知客户,交货时间需要延期。
    ChemFaces的产品在许多优秀和顶级科学期刊中被引用

    Cell. 2018 Jan 11;172(1-2):249-261.e12.
    doi: 10.1016/j.cell.2017.12.019.
    IF=36.216(2019)

    PMID: 29328914

    Cell Metab. 2020 Mar 3;31(3):534-548.e5.
    doi: 10.1016/j.cmet.2020.01.002.
    IF=22.415(2019)

    PMID: 32004475

    Mol Cell. 2017 Nov 16;68(4):673-685.e6.
    doi: 10.1016/j.molcel.2017.10.022.
    IF=14.548(2019)

    PMID: 29149595

    ACS Nano. 2018 Apr 24;12(4): 3385-3396.
    doi: 10.1021/acsnano.7b08969.
    IF=13.903(2019)

    PMID: 29553709

    Nature Plants. 2016 Dec 22;3: 16206.
    doi: 10.1038/nplants.2016.205.
    IF=13.297(2019)

    PMID: 28005066

    Sci Adv. 2018 Oct 24;4(10): eaat6994.
    doi: 10.1126/sciadv.aat6994.
    IF=12.804(2019)

    PMID: 30417089
    我们的产品现已经出口到下面的研究机构与大学,并且还在增涨
  • Universidade Federal de Goias (UFG) (Brazil)
  • Kyoto University (Japan)
  • Nicolaus Copernicus Uniwersity (Poland)
  • Universidade Federal de Santa Catarina (Brazil)
  • Universidade de Franca (Brazil)
  • Anna University (India)
  • Biotech R&D Institute (USA)
  • Worcester Polytechnic Institute (USA)
  • University of Auckland (New Zealand)
  • Universitas Airlangga (Indonesia)
  • Universidade Católica Portuguesa (Portugal)
  • Universit?t Basel (Switzerland)
  • Cancer Research Initatives Foundation(CARIF) (Malaysia)
  • University of Virginia (USA)
  • More...
  • 国外学术期刊发表的引用ChemFaces产品的部分文献
  • Chem Res Toxicol.2023, 36(2):213-229.
  • Food Chem.2016, 191:81-90
  • Int J Mol Sci.2022, 23(11):6104.
  • LWT2024, 200:116184.
  • Antioxidants (Basel).2023, 12(7):1324.
  • Journal of Ginseng Research2021, 15 June.
  • Drug Chem Toxicol.2020, 1-12.
  • Univerzita Karlova2021, 20.500.11956.
  • Sci Rep. 2018, 10590
  • Front Pharmacol.2019, 10:1226
  • J Agric Food Chem.2022, 70(51):16176-16187.
  • Horticulturae2022, 8(10), 975.
  • J Pharmaceutical and Biomedical Analysis2022, 114631.
  • The Journal of Phytopharmacology2020, 9(1): 1-4
  • BMC Complement Altern Med.2014, 14:242
  • Phytomedicine2022, 104:154318
  • Inflammation.2021, doi: 10.1007
  • Molecules2022, 27(9):2992.
  • Inflammation.2024, 02034-1.
  • Journal of Cluster Science2024, 35:635-656.
  • Evid Based Complement Alternat Med.2018, 2018:8565132
  • Food Chem.2020, 332:127412
  • Life Sci.2022, 298:120488.
  • ...
  • 生物活性
    Description: 2',6'-Dihydroxy-4,4'-dimethoxychalcone has asymmetric catalysis.
    In vitro:
    European Journal of Organic Chemistry, 2007.
    Asymmetric Cyclization of 2′‐Hydroxychalcones to Flavanones: Catalysis by Chiral Brønsted Acids and Bases.[Reference: WebLink]
    The asymmetric cyclization of 2′‐hydroxychalcones to flavanones is a basic, enzyme‐catalyzed step in the biosynthesis of flavonoid natural products, but poses a long‐standing problem for asymmetric catalysis with small molecule catalysts.
    METHODS AND RESULTS:
    Earlier claims concerning the realization of an asymmetric flavanone synthesis by means of camphorsulfonic acid as chiral Brønsted acid catalysts were reinvestigated using accurate HPLC methods for quantification of enantiomer ratios. The previous claims of asymmetric induction were thus shown to be untenable. On the other hand, cinchona alkaloids serve as chiral Brønsted base mediators for the asymmetric cyclization of either 6′‐substituted 2′‐hydroxychalcones or 2′,6′‐dihydroxychalcones. 2',6'-Dihydroxy-4,4'-dimethoxychalcone, for instance, cyclized to give the naturally occurring naringenin‐4′,7‐dimethyl ether in up to 64 % ee at 81 % conversion. The catalysis shows a marked dependency of the enantiomeric excess of the product on the catalyst, solvent and reactant concentration.
    CONCLUSIONS:
    Based on these successful examples of asymmetric cyclizations of 2′‐hydroxychalcones to flavanones, requirements for more active asymmetric catalysts can be defined.
    制备储备液(仅供参考)
    1 mg 5 mg 10 mg 20 mg 25 mg
    1 mM 3.33 mL 16.65 mL 33.3 mL 66.6001 mL 83.2501 mL
    5 mM 0.666 mL 3.33 mL 6.66 mL 13.32 mL 16.65 mL
    10 mM 0.333 mL 1.665 mL 3.33 mL 6.66 mL 8.325 mL
    50 mM 0.0666 mL 0.333 mL 0.666 mL 1.332 mL 1.665 mL
    100 mM 0.0333 mL 0.1665 mL 0.333 mL 0.666 mL 0.8325 mL
    * Note: If you are in the process of experiment, it's need to make the dilution ratios of the samples. The dilution data of the sheet for your reference. Normally, it's can get a better solubility within lower of Concentrations.
    部分图片展示
    产品名称 产品编号 CAS编号 分子式 = 分子量 位单 联系QQ
    2',6'-二羟基-4,4'-二甲氧基查耳酮; 2',6'-Dihydroxy-4,4'-dimethoxychalcone CFN70304 20621-49-2 C17H16O5 = 300.3 5mg QQ客服:1457312923
    2',4'-二羟基-4,6'-二甲氧基查耳酮; 4-O-Methylhelichrysetin CFN96080 56121-44-9 C17H16O5 = 300.3 5mg QQ客服:2159513211
    4,4'-二羟基-2',6'-二甲氧基查耳酮 ; 2'-O-Methylhelichrysetin CFN97920 123316-64-3 C17H16O5 = 300.3 5mg QQ客服:2159513211
    黄卡瓦胡椒素C; Flavokawain C CFN90741 56798-34-6 C17H16O5 = 300.3 10mg QQ客服:1457312923
    黄卡瓦胡椒素A; 2'- 羟基-4,4',6'-三甲氧基查耳酮; Flavokawain A CFN98446 3420-72-2 C18H18O5 = 314.3 10mg QQ客服:1413575084
    2',4',6',4-四甲氧基查耳酮; 2',4',6',4-Tetramethoxychalcone CFN91683 94103-36-3 C19H20O5 = 328.4 5mg QQ客服:215959384
    2',4'-二羟基-2,3',6'- 三甲氧基查尔酮; 2',4'-Dihydroxy-2,3',6'-trimethoxychalcone CFN99015 100079-39-8 C18H18O6 = 330.3 5mg QQ客服:2159513211
    3'-Methylflavokawin; 3'-Methylflavokawin CFN96084 1044743-35-2 C18H18O5 = 314.3 5mg QQ客服:215959384
    3'-甲基-2',4'-二羟基-4,6'-二甲氧基查耳酮 ; 3'-Methyl-4-O-methylhelichrysetin CFN96164 109471-13-8 C18H18O5 = 314.3 5mg QQ客服:215959384
    4,4'-二甲氧基查耳酮; 4,4'-Dimethoxychalcone CFN70472 2373-89-9 C17H16O3 = 268.3 5mg QQ客服:215959384

    信息支持


    公司简介
    订购流程
    付款方式
    退换货政策

    ChemFaces提供的产品仅用于科学研究使用,不用于诊断或治疗程序。

    联系方式


    电机:027-84237783
    传真:027-84254680
    在线QQ: 1413575084
    E-Mail:manager@chemfaces.com

    湖北省武汉沌口经济技术开区车城南路83号1号楼第三层厂房


    ChemFaces为科学家,科研人员与企业提供快速的产品递送。我们通过瑞士SGS ISO 9001:2008质量体系认证天然化合物与对照品的研发和生产