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.
160/210 page 148
![PART III. CLASSIFICATION OF EEACTIOIS, ETC 1. REACTION WITH ALKALINITY TESTS. The behaviour towards litmus is so easily seen on reference to column 6, in Part II., that another list here appears unnecessary. Towards Phenolphthalein, it is interesting to note that nearly all alkaloids are neutral ; solutions of their salts being indicated as if the acids were free. The following are exceptions, i.e., react alkaline to phenolphthalein : Atropine. Coniine. Homatropine. See Plugge, Arch. Pharm., [3], 25, 45. Hyoscine. Hyoscyamine. Nicotine. 2a. SOLUBILITY IN WATER. The following substances are soluble in water, and may be regarded as exceptions, for the greater number of the A., G. and B. are insoluble. Those in italics are very soluble ; oo = miscible in all proportions ; those in brackets are soluble with difficulty ; df.c.=:difficultly cold. Alkaloids. Acolyctine. Aconine. Anagyrine. Arecaidine. Arecaine. Arecoline. Aspidospermatine. Atropine, 1 in 200. [Bacharine, df.c] Berberine, 1 in 300; Caffeine. Calabarine. Cedrine. Chrysanthemine. Codeine, 1 in 80. [Colchiceine, df.c, sol. hot,] Colchicine, very. Conhydrine. Coniine, 1 in 100. Cuprine. Curarine. Cynapine. Cytisine oo. Dibromapophylline. Ecboline. Ecgonine, very. Ecbitamine. [Ephedrine.*] Ergotine. Erythrophlceine. Glaucopicrine. Guachamanine. Guvacine. Heliotropine. Hyoscyamine. Isopelletierine. Jaborine. Laburnine. Lobeliine. [Lupanine.*] Lupinidine. Lycoctonine. Macrocarpine (?). Mandragorine. Metbylpelletierine. [Morrenine.*] Muscarine oc. Nicotine. Pelletierine. Piliganine. Pilocarpidine. Pilocarpine. Piperidine <x. Piturine. Pseudaconine. Pseudo pelletierine. Sabadilline, very. Sabadinine. Sabatrine. Sinapine thiocyanide (yellow). Sophorine. Spigeline. [Staphisagrine, 1 in 200.] Theine. 1 in 98. Theophylline. Trianospermine. Trigonelline, very. Ulexine, very. [Valdivine, hot.] [Violine, df.] Glucosides. Achillein. Adonin. Amygdalin. Aphrodtescin. Apocynein. [Arbutin, df.c, sol. hot.] [Asclepiadin, df.] [Asebotin, df.] Bergenin. Bryonin. Cathartic acid. Chain aelirin. Colocynthin. Coniferin, 1 in 196. Convallamarin. Convolvulin. Coriamyrtin. Crocin, reddish-yellow. [Cyclamin.] [Datiscin, df.c, sol. hot.] Digitalein. [Digitalin.*] i Digitonhi co. Echugin. Fabianin. [Fustin, sol. hot.] Gentiopicrin. Globularin. Gratiosolin. Helicin, 1 in G4. Indican. Loliin. [Menyanthin, df.c, sol. hot.] [Murrayin, df.c, sol. hot.] Naringin, 1 in 300. Paristyphnin. Pinipicrin. Propasscinic acid. Rhamnin (yellow). Rbinanthin. [Robinin, df.c, sol. hot.] Salicin. Saponin. Scoparin, greenish - yellow. Sinalbin. SophoriD. Strophanthin. Thevetin, 1 in 122. Amaroids, etc. Agoniapicrin. . . Andirin.](https://iiif.wellcomecollection.org/image/b21503023_0160.jp2/full/800%2C/0/default.jpg)
