Dictionary of the active principles of plants: alkaloids : bitter principles; glucosides; their sources, nature, and chemical characteristics / with tabular summary, classification of reactions, and full botanical and general indexes. By Charles E. Sohn.
- Sohn, Charles E.
- Date:
- 1894
Licence: Public Domain Mark
Credit: Dictionary of the active principles of plants: alkaloids : bitter principles; glucosides; their sources, nature, and chemical characteristics / with tabular summary, classification of reactions, and full botanical and general indexes. By Charles E. Sohn. Source: Wellcome Collection.
Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.
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![§ 64. CHENOPODIUM album (White Goose-foo ) ; Chenopodiacece. The juice. Investigator : Eeinsch, N. Jahrb. Pharm., 20,268 and 27, 193. CHEN0P0DINE A. (Leucine? Dragendorff ; v. Gorup), C6H13N04 (C6Hi3N0.2 ?) ; crystallizes in microscopic needles; M.P. 180°, with crystalline sublimate and noxious odour ; neutral reaction ; tasteless. Solubility: 1 in 11 cold, and 1 in 3 to 4 boiling water : 1 in 202 cold, and 1 in 77 boiling alcohol of 90 per cent. Precipitated by platinum chloride. §'65. CHIOCOCCA racemosa (Cainca root) ; Rubiaceoe. (a) CAINCIN G. (Caincaic acid, Chiococcin), C40H64Oi8 (Rochleder) ; crystalline needles, acid reaction, taste gradually bitter. Action emetic nud purgative. Salts amorphous. Soluble in hot alcohol (crystals separate on cooling), difficultly soluble in water or ether. Reactions: Alkaline hydrates J dissolve; excess [Lead acetate, neutral, no pp., Ammonia f of lime preci- or slight.] Barium hydrate I pitates a basic Lead acetate, basic, pp. Calcium hydrate j salt. [Ferric chloride, no pp.] (6) CHI0C0CCAIC acid is formed together with sugar from the above by momentary heating with acid ; and (c) CAIK'CETIN, C22H2403, is produced when the heating is continued. § 66. CHIRETTA (Ophelia Chiretta, or Agathotes Chirayta) ; Gen- tianeoB. Investigator: Hohn, Arch. Ph., 139, 213. (a) CHIRETTIN B. (Chiratin), C26H4s015; amorphous, resinous, neutral, very bitter. Soluble in ether, which removes it from acid solutions. Chloroform does not extract it from either acid or alkaline solutions, or at most but traces. Reactions: [No pp. lead acetate, neutral or ammoniacal.] Tanic acid, pp. [Fehling's solution, not reduced.] (b) CH1RETT0GENIN. From the preceding by long boiling with acids. Not precipitated by tannic acid (compare above). (c) OPHELIC ACID B., C33H20O]0 ; yellow, syrupy, acid reaction, taste at first sour, becoming bitter ; gentian-like odour. Soluble in water and alcohol, also in mixture of ether and alcohol. Precipitants, etc.: Fixed alkalies ) dissolve Ammonia ] yellow. Lead acetate, neutral, pp. Ammoniacal silver nitrate, reduced. Fehling's solution, reduced. Metallic salts, pp. (Hohn). § 67. CHRYSANTHEMUM tanacetuni, (a), (6); C. Cinerarisefolium— the flowers, (c), (d); Composite. Investigators: Leppig, Pharm. Z. Russ- land, 1882; Marino Zuco, and others. (a) TANACETIN B., C 6146 per cent., H 77 per cent.; amorphous, bitter. Soluble in water and alcohol, not in ether. (6) TANACETIC ACID. The individuality of this substance is denied by Leppig. (c) CHRYSANTHEMINE A., C14H28N203 (Marino Zuco) ; syrupy, but dried in vacuo appears in form of silky needles ; M.P. above 100°; alkaline reaction, no rotatory power, physiologically inactive. Salts mostly soluble in water, some being deliquescent. Soluble in water, alcohol, and methyl alcohol. Insoluble in ether, chloroform, or benzene. Precipitants: [Not alkalies in dilute solution ,, lead acetate, neutral. ,, ,, basic. ,, tannic acid. „ picric acid. „ platinum chloride.] Gold chloride, yellow crystal- line, sol. hot. Colour tests (negative) : Concentrated sulphuric acid, no action (slight resinification on heating. Fuming hydrochloric acid, no action. (d) PYRETHROSIN B., C34H44Oi0 ; crystalline, bitter. Soluble in hot alcohol and chloroform ; less easily in ether and petro- leum ether. Insoluble in water. Concentrated hydrochloric acid, red or violet coloration. § 68. CICHORIUM intybus (Chicory) ; Compositm. The flowers. In- vestigator : R. Nietzki, Arch. Pharm. [3] 8, 327. CHIC0RIN G. (suggested name; R. Nietzki's ' Cichorium glucoside'). [Not phospho-molybdic acid.] Bismuth-potassic iodide, orange flocculent, becoming crystal- line. Mercuric-potassic iodide, yel- lowish-white. [Not mercuric chloride.] Platinic-sodic iodide, brown.](https://iiif.wellcomecollection.org/image/b21503023_0040.jp2/full/800%2C/0/default.jpg)
