除蟲菊蝋質物の不鹸化物成分

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タイトル別名
  • Studies on the Components of the Unsaponifiable Matter of the Wax of <i>Chrysanthemum Cinerariaefolium</i>
  • ジョチュウギク ロウ シチモツ ノ フケンカブツ セイブン

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説明

Petroleum-ether extract of pyrethrum flowers concentrated to the commercial concentration is a brown liquid containing about 20% of pyrethrin. When it is allowed to stand for about one week, wax-like precipitate is formed as semi-solid masses at the bottom of the container. From the unsaponifiable matter, which were obtained from the above-mentioned wax-like precpitate, the author could isolate several substances such as β-amyrenol (β-amyrin), ceryl alcohol, hentriacontane, nonacosane or octacosane, and other substances.

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