helenalin sesquiterpene lactone molecule toxin found arnica montana skeletal formula |
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| navigate by keyword : helenalin toxin molecule skeletal formula antitumor arnica atomic atoms chemical chemistry composition compound drawing flat helenaline icon irritation lab laboratory lactone line medical medicine molecular montana research science sesquiterpene structure toxic |
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| Helenalin sesquiterpene lactone molecule. Toxin found in Arnica montana. Skeletal formula. Vector illustration |
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