Papers, Issues 49-69Wellcome Chemical Research Laboratories, 1905 - Botanical chemistry |
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acetic acid acetyl acidified with sulphuric Aethusa alcoholic extract alkaline alkaloid aqueous liquid barbaloin barium salts bark boiling bromine Brucea brucine cent CH₂ chaulmoogric acid Chelsea Physic Garden CHEMICAL RESEARCH LABORATORIES chloride chloroform CO₂ Codex collected color colourless compound consisted constituents contained crystalline substance crystals derivative dilute dissolved distilled dried Eriodictyon ester ether ethereal liquid ethyl acetate examination extracted with ether fatty oil filtered filtrate flask formic formula fraction fruit gave grams Grindelia H₂O heated herbarium homoeriodictyol houses hydrogen hydrolysis insoluble isolated ketone lactone latter light petroleum melting point mixture needles obtained oxidation permanganate Philip Miller phytosterol pilocarpine plants PLATE portion potassium hydroxide potassium permanganate precipitate prepared removed requires residue resin seeds semicarbazone separated small amount Society of Apothecaries SOCIETY'S GARDENS sodium carbonate solid soluble solvent sulphuric acid tion tube umbellulonic acid washed WELLCOME CHEMICAL RESEARCH yellow yielded