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isoalantolactone

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Origin: China

Cas No: 470-17-7

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

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  • Products Specification
  • Product Description

  • Property

    CAS No.: 470-17-7 Formula: C15H20O2 Molecular Weight: 232.31800

    Description

    Helenin is a phytochemical mixture found in many plant species, including the Inula helenium (elecampane) of the Asteraceae family. It is a mixture of two isomeric sesquiterpene lactones, alantolactone and isoalantolactone.
    In 1895 a German scientists Julius Bredt and Wilhelm Posh extracted helenin from Inula helenium and determined its physical and chemical properties.

    Basic Info

    Chemical Name isoalantolactone
    Synonyms

    ISOHELENIN;
    ISOALANTOACTONE;
    isolantolactone;
    Isoalantolactone;

    CAS No. 470-17-7
    Molecular Formula C15H20O2
    Molecular Weight 232.31800
    PSA 26.30000
    LogP 3.24060

    Properties

    Density 1.07g/cm3
    Boiling Point 364.9ºC at 760mmHg
    Flash Point 152.7ºC
    Refractive Index 1.527
    Vapor Pressure 1.63E-05mmHg at 25°C

    Safety Info

    Safety Statements S22; S36
    Risk Statements R40
    Hazard Codes Xn

    Synthesis Route

    11β-phenylseleno-5,7,8αH-eudesm-4(15)-en-8,12-olide→isoalantolactone
    11β-phenylseleno-5,7,8αH-eudesm-4(15)-en-8,12-olide→isoalantolactone+norisoalantolactone
    13-(phenylthio)isoalantolactone→isoalantolactone

    Toxicity

    Exposure Route Type of Test Species Observed Dose/Duration Toxic Effects
    - Cytogenetic analysis - 6250 ppb -

    Precursor

    3-oxo-5,7,11αH,4,8βH-eudesman-8,12-olide
    13-(phenylthio)isoalantolactone
    (3aR,8aR,9aR)-8a-methyl-5-methylene-3-((phenylsulfinyl)methylene)decahydronaphtho[2,3-b]furan-2(3H)-one
    11β-phenylseleno-5,7,8αH-eudesm-4(15)-en-8,12-olide

    Downstream Product

    (3aR,4aS,8aR,9aR,E)-3-(3-methyl-4-fluorobenzylidene)-8a-methyl-5-methylidenedecahydronaphtho[2,3-b]furan-2(3H)-one
    (4aS,8aR,9aS)-3-(3-methyl-4-fluorobenzyl)-8a-methyl-5-methylidene-4a,5,6,7,8,9,9a-octahydronaphtho[2,3-b]furan-2(4H)-one
    2-ATRACTYLENOLIDE

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