单词 | kosin |
释义 | kosinn. Chemistry. Either of two related bicyclic phenols (not originally differentiated), C25H32O8, which are responsible for the anthelmintic property of kousso and are isolated as pale yellow crystals. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > benzene derivatives > phenols > others phenetidine1851 nitrophenol1852 carvacrol1854 guaiacol1864 hydroquinone1865 iodophenol1868 pentachlorophenol1869 trichlorophenol1871 purpurogallin1872 xylenol1872 kosin1875 phloroglucinol1879 cerulignol1883 cannabinol1896 gossypol1899 thiophenol1899 phenol resin1911 oxine1927 nordihydroguaiaretic acid1944 1875 Pharm. Jrnl. & Trans. 5 562/2 From the aqueous residue of the alcoholic extract the koussin of Bendall, existing as a calcium compound, is precipitated as a more or less crystalline whitish powder. 1875 Jrnl. Chem. Soc. 28 468 The koso flowers yield about 3 per cent. of kosin. 1887 A. H. Buck Ref. Handbk. Med. Sci. IV. 318/2 Kosin..is unquestionably the principal tænicide agent of Koosso. 1911 Encycl. Brit. XV. 921/1 Kousso... The active principle is koussin or kosin,..which is soluble in alcohol and alkalis, and may be given in doses of thirty grains. 1937 Jrnl. Chem. Soc. 563 The pale yellow product was identical with Merck's kosin... By fractional crystallisation we were able to separate this material into two distinct compounds, α-kosin, m.p. 158° (yellow needles), and β-kosin, m.p. 120° (yellow prisms). 1952 Jrnl. Chem. Soc. 3103 Extracts of the flowers [sc. Hagenia abyssinica] contained large amounts of amorphous material, some of which could be converted into kosins by the action of alkali. Derivatives kosotoxin n. ΚΠ 1894 Jrnl. Chem. Soc. 66 i. 424 Kosotoxin, C26H34O10, a pale yellow powder, which melts at 80°. This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2021). < n.1875 |
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