DICTIONAKY OK THE ACTIVE Pit I NCJ I'l.KS UV l'l,ANTS. 



r.3 



Soluble iu alcohol, ether, chloroform, not in water. 



Kemoved from alkaline solutions by ether. 



Reactions (with the nitrate) : 



Alkaline hydrates) , , , 

 . ■ -^ > soluble. 



Ammonia J 



Picric acid, crystalline pp., soluble in alkalies, deep red. 

 [Gold chloride, slight coloration.] 

 [Phospho-molybdic acid, green coloration.] 

 ' No reactions with other alkaloid precipitants.' — Shamel. 

 Concentrated sulphuiic acid, insoluble. 

 Nitric acid, dissolves. 

 Hydrochloric acid, insoluble. 

 (/() EUPATORIN, G. Acid taste. Gives sugar and a red substance on 

 boiling with acids — an odour of raspberries being evolved. 

 Soluble in hot water, and in alcohol, ether, chloroform. 

 Not precipitated by neutral lead acetate. 

 Colour tests ; 



t'oiH-.eiitiated sulphuric acid, dissolves, reddish-brown. 



nitric acid ( j. , ^ jj^^ solution, 



hydrochloric acid j ° •' 

 § lli.'J. EUPHORBIA resinifera ; Eiijihorhiarfir. Yielding euphor- 

 bium resin. Investigator : Fliickiger, V'lei-telj. Prtit-t. Pliarm., 17,82, and 

 other.>i. 



EUPHORBON, C,:,H,,0 (Fluckigerj, or Ci,,H„0 (O. Hesse). Powder or 

 crystals (needles from ether or benzene, and prisms from chloroform) ; 

 M.P. 10G°-116° ; neutral reaction ; burning taste ; no odour. 



Soluble in hot alcohol (crystallizes out on cooling), also in ether, chloro- 

 form, benzene, amyl alcohol, but requiring .38,000 pai'ts of cold water for 

 solution. 



Alkalies 1 ^i^gj^i^g j^ ^^i^. ^^^ Y^^ extent. 

 Ammonia ) ■ ' 



Colour tests : 



Concentrated sulphuric acid, yellowish-brown. 



„ „ „ with nitric acid, violet. 



Acids in general exert very little solvent action. 

 § 104. FRAGARIA vesca (Strawberry) ; Hunacec:. The root. 

 FRAGARIAMARIN, G. Yields sugar and a red amorphous substance, 

 FuAGAKiN, on treatment with acids. Fragariamarin is soluble with diffi- 

 culty in water, alcohol, or ether. 



§ U)y. FEAXINUS excelsior (Ash), O/cacctt ; jEsculusbypocastaneum 

 (Horst -chestnut) and JE. Pavia, Saphukwca'. Mem.: For other consti- 

 tuents of horse-chestnut, see ^sculus ; and for Quercitrin (contained in 

 the leaves of the ash), see Quercus tinctoria. Following from the root : 

 {(,) FRAXIN, G. (Paviin), 



CH:CH 

 C„,H,„0„, or C,oH„Oi„ = OCH,C„H(OH) (OCoH^O^X | 



O - CO 

 (Koernei- and Beginelli). Ci'ystals resembling zinc sulphate (Rochleder) ; 

 M.P. ,320° ; neutral, feebly bitter. Acids give Fraxetin and sugar. The 

 ammoniacal solution shows bluish-green fluorescence. 



Soluble in 1,000 parts cold water, more readily hot, with difficulty iu 

 cold alcohol but more easily warm, slightly in ether to which it com- 

 municates fluf)re.scence. 

 Reactions : 



Alkaline hydrates l 



,, carbonates > dissolve to yellow solutions, lluorescent. 

 Ammonia J 



Lead acetate, neutral or basic, to alcoholic solution, yellow pp. 



„ „ aqueous solution, no pp. 



Concentrated sulphuric acid, yellow. 

 Ferric chloride, greeu'wyellow pp. 



(i) FRAXETIN, G.-derivative. 



C„H„0« or C,„H,0, = OCH,-C,H(OH).,<^^^ V^J (Koerner). 



Yellow crystalline needles and plates with Ik'H.X), anhydrous at 100° C. ; 

 M.P. 227° (Koerner), re-crystallizing on cooling. Acid reactiou ; not 

 bitter. 



Soluble in 10,000 parts of cold water, or 33 on boiling, with difficulty 

 in alcohol, scarcely in ether. 

 Colour tests : 



Concentrated sulphuric acid, yellow. 



,, nitric acid, dark violet-vv.red'wyelloW'vi.colourless. 



§ mo. FRITILLARIA Imperialis (Crown Imperial) ; Liliarm. The 

 bulb.s, ()-ll« to 0-12 percent. 



IMPERIAUNE, A., Cs.r.HraNOj ? (K. Fragner). Crys. needles, Itevo- 

 rotatory ([a]D= - 35-4" iu chloroform) ; M.P. 2,04° (browns at 248°) ; very 

 bitter. Hydrochloride solution is fluorescent, the sulphate hygroscopic. 



