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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![Soluble in alcohol, ether, chloroform, petroleum ether (removed by the latter from a bicarbonate solution—compare Alstonine). Reactions : Ammonia, pp. and magnificent blue fluorescence. Platinum chloride ) Gold chloride ] pp' Potassium bichromate, yellow pp. and red coloration (not permanent). Mercuric chloride, pp. Colour tests: Concentrated sulphuric acid \ „ ,, ,, -f-molybdic (Frohde's soln.) ! purple. „ nitric acid ) ,, sulphuric acid and potassium bichromate, greenish-blue. (/) ALSTONIDINE A. (Hesse's), closely resembles O. and S.'s Alstonine, but not identical. Crystallizes in needles ; M.P. 181°; bitter. Soluble in acetone. Salts have blue fluorescence. Precipitated by alkaline hydrates and ammonia. No colours with concentrated sulphuric acid or Fronde's solution., (g) ECHITIN (Cynanchin? see Asclepias group), C:!2HS202; non-alkaloidal, non-glncosidal ; crystallises in needles ; dextro-rotatory. Soluble in 1,430 parts of alcohol, and in ether and chloroform. (h) ECHICERIN (Cynanchocerin ?), C.j0H48O2; wax-like, crystalline, dextro- rotatory. Soluble in ether, chloroform, benzene, petroleum ether, acetic ether, and with difficulty in acetone. Sapnuifiable, yielding a substance crystallizing in needles. (i) ECHIRETIH (=Lactucerin = Cubeb Camphor, Hesse). Aromatic. Soluble in ether, chloroform, benzene, acetic ether, and hot alcohol. § 12. AMARYLLIS formosissima (Amaryllhlacea) ; alkaloid (a). Investigators : Arata andGieger. A. Belladonna,alkaloid (b). (a) AMARYLLINE A. Crystallises in needles from alcohol ; M.P. 19G° (previously becoming brown). Soluble in alcohol, ether, chloroform, and with difficulty in water. Precipitants: [Not tannic acid.] , Bismuth potassic iodide ) Picric acid, yellow. Cadmium potassic iodide) ^ [Not platinum chloride.] I Mercuric potassic iodide, yellowish- [Not potassium bichromate.] green. ' Pps. also with other alkaloid precipitants.' Colour tests: Concentrated sulphuric acid, red-brown~vbrown~v green with water. Frohde's solution, brownish-green. (6) BELLAMARINE A. Crystallizes in needles ; M.P. 181° (previously browning). Soluble in alcohol, ether, chloroform. Precipitants: Potass, bichromate, crystalline pp Bismuth potassic iodide, white. Cadmium potass, iod., yellow-white. Merc, potassic iodide, yellow-green. Alkaline carbonates. Tannic acid, white. Picric acid, yellow. Platinum chloride, yellow. Colour tests : Concentrated sulphuric acid, gray~vred on warming. Concentrated sulphuric acid + nitre, yellow-green. ,, ,, ,, +potass. bichromate, yellowish-green~v brown. Frohde's solution, brown. §13. AMMI WISNAGA—the seeds ('Kell'); Umbelliferce. Egypt. Investigator : Mustapha, Compt. R., Aug., 1879. KELLIN G-. Crys. silky needles, neutral, very bitter. Action emetic and narcotic. Soluble in hot water, amyl alcohol, methyl alcohol, and chloroform, but with difficulty in these fluids when cold ; readily soluble in ether. Reactions: Fehling's solution, reduced. Nessler's ,, white pp., sol. in alcohol. Loew's reagent „ „ excess. § 14. ANAGYRIS fcetida ; Leguminosce. Investigators : Gallois and Hardy. ANAGYRINE A., C14H18N202; amorphhous, alkaline, bitter. Salts crystalline. Soluble in water, alcohol, ether, benzene. Precipitates with most alkaloid reagents. Concentrated sulphuric acid, unchanged cold; musk-like odour on warming. § 15. ANCHIETA salutaris ; Violacea: Investigator: Peckolt, Archir. Pharm. [2J.97.-271. ANCHIETINE A. Crys. light yellow needles, feebly alkaline, pungent taste. Salts crystalline. Action emetic. Soluble in alcohol; not in ether, nor cold water, and scarcely when hot.](https://iiif.wellcomecollection.org/image/b21503023_0020.jp2/full/800%2C/0/default.jpg)
