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Showing 1 to 1 of 1 for “"Poisonous plants; Thistle"”.
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Isolation of a Toxic Substance from CENTAUREA REPENS
<p>A poisonous steroid-type compound was isolated from Centaurea repens. After extraction with absolute ethanol, removal of the solvent, addition of 2% HCl to precipitate the pigments, and filtering, the pH was adjusted to 9 with aqueous anunonia. This solution was exhaustively extracted with …