Picric Acid (6).] 



[Colchicine, not di- 

 lute.] 



Conhydrine. 



Corydaline. 



Cytisine. 



Delphinine. 



Emetine, 1 in :ij,000. 



Erythrine. 



Eupatorine. 



Gelseraine. 



Hydrastine. 



Hymenodictyouine. 



Hyosc} amine. 



Imperialine. 



Lobeliine. 



Mandragorine. 



Narceine, crys. 



Narcotine. 



Oleandrine. 



Oxyacanthine. 



[Pa])ain.] 



Papaverine, cry.s. 



Pithecolobine, limit 1 

 in 1(10,000, 



CLASSIFICATION OF REACTIONS, ETC. 



Protoveratridine. 



Protoveratrine. 



Quinidine, crys. 



Quinine. 



Pseudopelletierine. 



Sparteine. 



Strychnine, 1 in 20,000 



crys. 

 Taxine. 

 Thebaine. 

 Tropidine. 

 Ulexine. 

 Veratrine. 



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. 



Pseudomorphine. 



Sabadilline (not 1 in 

 If.O). 



Sabatrine(not 1 in 150). 



Solanine (A.-G.). 



Theine, pp. coned. 



Theobromine. 



Trigonelline. 



Veratrine, pp. coned. 



7. FEERIC 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 suli)hate is shown. Alkaloids 

 should be in form of salts. 



I. Altaloids 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 



FeSO,.] 

 Morphine, bl. 



Muscarine. 



Nartinic Acid, r.-bo. 



Oleandrin (Neriodo- 

 rin), r.-bn. 



[Free Nicotine gives 

 pp. ferric hydrate.] 



[Physostigmine, free, 

 as Nicotine.] 



Piliganine, r. pp. 



Piperine, pp. 



Pseudomorphine, bl. 

 or bn.-gn. 



Ratanhine, violet. 



Sinapine - thiooyanide, 

 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). 



Agoniadiu, 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). 



[Fei 



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 p]i. 



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. ; FeSO^, 

 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.] 



l.^iS 



RRIC CllLORIDK (7). 



Quercetin,dark-gn.; r. 

 warm. 



Rhamnetin, bn.-gn. (al- 

 coholic). 



Saligenin, indigobl. 



[Santonin, pp. by 

 FeSO^.] 



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. 



Glucosideif. 



[Achillein, no action 



FeSOj.] 

 Coniferin, no pp. 

 Gentiopicrin. 

 Helleborein. 



20 



