echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Chemicals Industry > Chemical Technology > Toad venom base

    Toad venom base

    • Last Update: 2022-06-05
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com

    Toad venom base

    Cinobufagin

    [Synonyms] Huabufaxin, Huabufazi, Huabufajing

    【Structural formula】


    [Molecular formula and molecular weight] C 26 H 34 O 6 ; 442.


    [Source] Bufobufo gararizans Gantor or Bufobufo gararizans Gantor or Bufobufo gararizans Gantor or Bufomela-nostictus Schneider


    【Properties】White square crystal


    This product is soluble in chloroform


    Melting point: 213~215℃


    【Purity Check】

    TLC

    1.


    Developing solvent cyclohexane - chloroform - acetone (5:3:3)

    Check under UV light (254nm) before color development, and under sunlight after color development with 10% sulfuric acid ethanol

    2.


    Developing solvent cyclohexane - chloroform - ethanol - acetic acid (10: 10: 1 1)

    Check under the ultraviolet light (254nm) before the color development, and check the high performance liquid chromatography under the sunlight after the color development with 10% sulfuric acid ethanol

    Column DiamansilTM C 18 , 5um (4.


    Mobile phase acetonitrile-water (53:47), 1.


    Detection wavelength 295nm

    Differential calorimetry

    Start temperature 40℃, end temperature 250℃, heating rate 5℃/min

    【Structural identification】295,202


    3454, 2914, 1736, 1712, 1549, 1450, 1385, 1234, 1215, 1136, 1038, 958, 881, 845


    ESI-MS m/z: 443[M+H] + , 425, 382, ​​364, 250, 233, 215, 203


    1 H-NMR (CDCl 3 ) δ: 7.


    13 C-NMR (CDCl 3 ) δ: 29.


    【Storage】Dry and airtight


    Related Links: Evodia

     

     

    This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.