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.
Catalog | Product Name | CAS Number | Manual |
---|---|---|---|
CFN90219 | 1-O-Acetyl britannilactone | 681457-46-5 | n/a |
CFN99272 | Quercetin | 117-39-5 | |
CFN99825 | Carabrone | 1748-81-8 | |
CFN97104 | Taraxasterol acetate | 6426-43-3 | |
CFN98748 | alpha-Spinasterol | 481-18-5 | |
CFN98692 | alpha-Spinasterol acetate | 4651-46-1 | n/a |
CFN99824 | alpha-Spinasterol glucoside | 1745-36-4 | |
CFN99115 | 6,7-Dihydroxycoumarin | 305-01-1 | |
CFN99952 | Daphnetin | 486-35-1 | |
CFN97494 | Scopoletin | 92-61-5 | |
CFN98857 | Wedelolactone | 524-12-9 | |
CFN98850 | Quercitrin | 522-12-3 | |
CFN98753 | Isoquercitrin | 482-35-9 | |
CFN99116 | Chlorogenic acid | 327-97-9 | |
CFN99074 | Taraxasterol | 1059-14-9 | |
CFN89438 | 1-O-Acetylbritannilactone | 33627-41-7 | n/a |
CFN89470 | 1-O-Acetyl-6alpha-O-(2-methylbutyryl)britannilactone | 1932687-71-2 | n/a |
CFN89518 | 1,6-O,O-Diacetylbritannilactone | 1286694-67-4 | n/a |
CFN89521 | 1-O-Acetyl-6-O-isobutyrylbritannilactone | 1613152-34-3 | n/a |
CFN89001 | 6alpha-Hydroxytomentosin | 1232676-22-0 | n/a |
CFN89501 | Dibritannilactone B | 1829580-18-8 | n/a |
CFN89045 | Eupatolide | 6750-25-0 | n/a |
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