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    Natural Products
    Inula Britannica L.

    Inula britannica, the British yellowhead or meadow fleabane, is a plant species in the genus Inula. The plant produces the flavonol axillarin.
    Herbs, perennial, 10-40(-75) cm tall. Stems erect, villous. Leaves sessile; basal blades lanceolate, (3-)6-7 cm × 8-20(-30) mm; cauline blades lanceolate-elliptic to lanceolate-linear, 2-5+ cm × 5-12(-20) mm, abaxially usually densely villous and glandular, adaxially sparsely strigillose to glabrate, bases cordate or auriculate, clasping, margins entire or serrulate. Capitula 1-8, 2.5-5 cm in diam.; peduncles 1-4 cm, densely villous.
    Cytotoxicity-guided fractionation of the flowers of Inula britannica led to the isolation of four sesquiterpene lactones, 4 alpha, 6 alpha-dihydroxyeudesman-8 beta, 12-olide (1), ergolide (2), 8-epi-helenalin (3), and bigelovin (4). Compound 1 was isolated as a new natural product. These compounds showed cytotoxicity against human tumor cell lines.

    Inula Britannica L.
    Research products of Inula Britannica L.
    Catalog Product Name CAS Number Manual
    CFN902191-O-Acetyl britannilactone681457-46-5  n/a
    CFN99272Quercetin117-39-5  PDF
    CFN99825Carabrone1748-81-8  PDF
    CFN97104Taraxasterol acetate6426-43-3  PDF
    CFN98748alpha-Spinasterol481-18-5  PDF
    CFN98692alpha-Spinasterol acetate4651-46-1  n/a
    CFN99824alpha-Spinasterol glucoside1745-36-4  PDF
    CFN991156,7-Dihydroxycoumarin305-01-1  PDF
    CFN99952Daphnetin486-35-1  PDF
    CFN97494Scopoletin92-61-5  PDF
    CFN98857Wedelolactone524-12-9  PDF
    CFN98850Quercitrin522-12-3  PDF
    CFN98753Isoquercitrin482-35-9  PDF
    CFN99116Chlorogenic acid327-97-9  PDF
    CFN99074Taraxasterol1059-14-9  PDF
    CFN894381-O-Acetylbritannilactone33627-41-7  n/a
    CFN894701-O-Acetyl-6alpha-O-(2-methylbutyryl)britannilactone1932687-71-2  n/a
    CFN895181,6-O,O-Diacetylbritannilactone1286694-67-4  n/a
    CFN895211-O-Acetyl-6-O-isobutyrylbritannilactone1613152-34-3  n/a
    CFN890016alpha-Hydroxytomentosin1232676-22-0  n/a
    CFN89501Dibritannilactone B1829580-18-8  n/a
    CFN89045Eupatolide6750-25-0  n/a
    Screening Libraries
    Tripterygium wilfordii Hook. f.

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    A unique collection of 38 natural compounds from Sophora flavescens Ait
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    A unique collection of 23 natural compounds from Peucedanum praeruptorum Dunn
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    A unique collection of 22 natural compounds from Saposhnikovia divaricata (Turcz.) Schischk.
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    A unique collection of 21 natural compounds from Aucklandia lappa
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    A unique collection of 21 natural compounds from Saussurea lappa Clarke
    Chelidonium majus L.

    A unique collection of 22 natural compounds from Chelidonium majus L.