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.
165/210 page 153
![Picric Acid (6).] [Colchicine, not di- lute.] Conhydrine. Corydaline. Cytisine. Delphinine. Emetine, 1 in 25,000. Erytbrine. Eupatorine. Gelsemine. Hydrastine. Hymenodictyonine. Hyoscy amine. Imperialine. Lobeliine. Mandragorine. Narceine, crys. Narcotine. Oleandrine. Oxyacanthine. [Papain.] Papaverine, crys. Pithecolobine, limit 1 in 100,000. classification of reactions, etc. Protoveratridine. Pro tovera trine. Quinidine, crys. Quinine. Pseudopelletierine. Sparteine. Strychnine, 1 in 20,000 crys. Taxiue. Thebaine. Tropidine. Ulexine. Vera trine. II. Glucosides are not precipitated; exceptions are : Adonin. Euonymin (not at once). Limonin (alcoholic soln.) III. The following Alkaloids are not precipitated, or only from concen- trated solutions. Arecaine. Aconitine. Atropine. Caffeine (Theine). Chrysanthemine. Coniine. Jurubebine. Morphine, pp. coned. Nicotine, pp. coned. Physostigmine, pp. coned. Pseudoruorphine. Sabadilline (not 1 in 150). Sabatrine(not 1 in 150). Solanine (A.-G-.). Theine, pp. coned. Theobromine. Trigonelline. Vera trine, pp. coned. 7. FERRIC CHLORIDE gives colour reactions with a considerable number of substances, and precipitates with a few, as indicated below. When not otherwise stated, the chloride is the iron salt used; in some instances, however, the action of ferrous sulphate is shown. Alkaloids should be in form of salts. I. Alkaloids giving coloration (no pp. unless specially mentioned). Aconitine, pp. y. Adansonine, gn. Angeline, violet. Apomorphine, r., then black. Arecaidine, r. Colchicine, gn. colour or pp. [Cotarnine, pp. by FeS04.] Cupreine, dark bn. Cytisine, r. Geissospermine, bl. Guvacine, deep red. Hypoquebrachine, r. Laudanine, gn. [Lobeliine, bn. pp. by FeS04.] Morphine, bl. Muscarine. Nartinic Acid, r.-bn. Oleandrin (Neriodo- rin), r.-bn. [Free Nicotine gives pp. ferric hydrate.] [Physostigmine, free, as Nicotine.] Piliganine, r. pp. Piperiue, pp. Pseudomorphine, bl. or bn.-gn. Ratanhine, violet. Sinapine - tbiocyanide, blood-red on warm- ing. Sophorine, blood-red. [Strychnine, light bn. if coned.] Trigonelline, r. Ulexine, dark r. Ustilagine, dark y. [Veratrine, pp. hydro- chloric solution.] II. Glucosides giving coloration (or pp. where so stated). Agoniadin, pp. Arbutin, blue. Chicorin, gn. [Daphnin, faint blue if concentrated.] Datiscin, bn.-gn. pp. Fraxin, gn.-y. pp. Helixin, gn. Hesperidin, bn.-r. Melanthin, y.-gn., (al- coholic). Naringin, r.-bn Quercetrin, dark gn. Rhamnin, olive - gn. dilute, bn.-r. if con- centrated. [Saponin, cloud warm.] Sennapicrin, gn. Sophorin, r.-bl. Strophanthin, gn.-y. and slight pp. Xanthostrumarin, dark gn. pp. III. Bitter Principles (Amaroids) and Glucoside - deriva- tives giving colora- tion (or pp. where so stated). Agoniapicrin, bn. Aloin, gn.-black. Apiin, dark r. ; FeS04, blood-red warm. [Capsicin, no change cold, r. pp. hot.] Catechin, gn.-bn. Ceratophyllin, r.-v. [Daphnetin,gn. coned.] Fisetin, black - gn. (black pp. with am- monia). Hesperetin, bn. Hop resin, bn. pp. Kosin, r. (alcoholic). Mangostin, dark gn.-bl. Meconin, blood-r., not decolourized by HCL). [Quassiin, bn. warm.] 153 [Ferric Chloride (7). Quercetin, dark-gn.; r. warm. Rhamnetin, bn.-gn. (al- coholic). Saligenin, indigo-bl. [Santonin, pp. by FeS04.] IV. No action with following: Alkaloids. Anthocercine. Atropine. Cinchonamine. Cinchonidine. Cocamine. Codeine. Cuscamine. Hyoscyamine. Lanthopine. Laudanosine. [Narceine, after heat- ing till fumes, blue]. Narcotine. Oxynarcotine. Quinine. Sabadilline. Sabatrine. Theine. Theobromine. Tylophorine. Glucosides. [Achillein, no action FeS04.] Coniferin, no pp. Gentiopicrin. Helleborein. 20](https://iiif.wellcomecollection.org/image/b21503023_0165.jp2/full/800%2C/0/default.jpg)
