DICTIOXAIIY Ol- Till-; ACTIVE PlilXCII'LES ol" PLANTS 



Concentrated sulpluiiic arid with nitric acid, reddish-violet. 

 Concentrated sulphuric acid with nitre added after 10 liours, brown 



~«-light yellow-wyellowish-red. 

 Concentrated nitric acid alone, yfcllo\v>~cnlouiless. 

 Concentrated hydrochloric acid, no effect. 

 Per-iodic acid, not reduced. 

 Friihde's solution, green->«.=herry-red with more molybdic acid. 



^ (;',a) HYDRO-COTARNINE A., C,„H,-,N03+UH,,() (Beckett and Wright). 

 From Opium and also from -Narcotine and "Cotarnine by reduction. 

 Monoclinic prisms ; M.P. r)0°-55'', partly volatile at 100° ; optically in- 

 active ; alkaline reaction ; a strong base ; more poisonous than Cotarnine 

 and Morphine. 



Soluble in alcohol, ether, chloroform, benzene. 



('(incentrated sulphuric acid, yellow ; red on warming. 



■Mi) COTARNINE A., C,„Hi.,NO;,-l-H,0, or 



t'H,<Jj>C„H(()CH,)(CIIO)Cn,C[T,NHCH;, 

 r. : 4 : :; : :! 



(W. Roser), see J". Chew. Soc, 1890, p. 5:U. From Narcoline. Crystallizes 

 in radiating needles, anhydrous near 100" ; JI.P. 132° (Pictet). 



Soluble in alcohol (solution turns brown), readily in ether, difficultly 

 in CI lid water, easier warm. 



Ferrous salts, pp. 

 Platinum chloride, 



crystalline pp. 

 Copper sulphate, pp. 



yellow 



Reactions : 



Alkaline hydrates, scarcely di; 



solve. 

 Ammonia, dissolves easily. 

 Tannic acid, pp. 

 (!oncentrated nitric acid, dissolves red, yielding oxnlic acid. 

 i::5() TARCONINE A., 



C C:CH-NCH,, 



C„H,N0,orCH,<[^I.O^^.pj^^i..CH^I,jj 



( \V. Roser), see J. Chem. Soi:, 1890. From Narcotine. 



(:\,1) NARTINIC /1C/0, C^.Hu'N'i.O,! From Narcotine. Orange coloured. 

 Reactions : 



Alkaline hydrates dissolve, with separation of green flocks. 



Ferric chloride, reddish-brown coloration. 



Silver nitrate, reduced. 



(■.)e) CUPRONINE A., (•,.„H„'N'.,0,.. From Narcotine. Black powder. 

 The hydrobromide i» cojiper-coloured and difficultly soluble in water. 

 Alkaline hydrates dissolve, reddish-brown. 

 Concentrated sulphuric acid, fuchsine-ied, bluish-violet with water. 



(■if) TARNINE A., C,,H„NOj + UH..O. From Narcotine. Orange 

 needlfs. INl.P. 22(r . 



The hydrobromide .soluble in water (compare Cupronine). 



Soluble in hot water or hot alcohol, not in ether. 



(■:,;,) CUPRINE X., C,,H.NO.,. From Narcotine. (Not to confuse with 

 Cupreine, see Cinchona.) Copper-coloured. 



Soluble in water and alcohol with green colour. Insoluble in ether. 



Acids give deep blue solutions. 



(3//) DIBROMAPOPHYLLINE A., C„H,„N,Hr.O,. From Narcotine. M.P. 

 229°. 



Soluble in water. 



Silver nitrate, reduced. 



()!/) APOPHYLLIC ACID. O 



C.H-NO, or COOHC,H,NCH3C< | 

 o 

 tWohler, etc.). M.P. 241 -242 . Difficultly soluble in water. In- 

 soluble in alcohol or ether. 

 I (4i PAPAVERINE A., C,„H.,,NO, or C6H:,(0-CH^),,-CH.,-C..H,N(0CH,). 

 I (Goldschmidt). Crystallizes in prisms ; M.P. 9K , sublimate !.'«(- (Gny), 

 or 147^ (Pictet) ; sp. gr. i;50S to l'.i37 ; very feebly alkaline; feebly 

 I lajvo-rotatory (or inactive — Goldschmidt) ; not poisonous. 



Soluble scarcely in water, in about 50 parts cold alcohol, readily in 

 hot, giving crystals on cooling : in 30 parts benzene, 2^>x ether, 77 acetic 

 ether ; in chloroform, acetone, and warm petroleum ether separates from 

 the latter on cooling). 



Removed by chloroform from both acid and alkaline solutions, by 

 benzene with difficulty. 

 Precipitants : 



Alkaline hydrates. 



,, carbonates. 

 Ammonia. 

 [Not lead acetate ] 

 Tannic acid, yellow ; 1 in .'^,000. 

 Picric acid, yellow amorphous becoming crys. : slight at 1 in .'lOO. 



