CHEMISTRY OF THE PTOMAINES. 195 



Another toxine was obtained by Brieger (1887) in cult- 

 ures of the tetanus mi^trobe which produced complete tetanus, 

 salivation, and tear-secrction. In its composition it is prob- 

 ably a diamine. The platinochloride forms plates which 

 begin to decompose at 240°. The hydrochloride is very 

 deliquescent. Gold chloride and picric acid foi'ni very 

 soluble compounds. Besides these three bases he isolated 

 another toxic substance, tetanine, and a base (see under 

 Tetanine). 



DiHYDROLUTiDiNK, CyHul^, was found in cod-liver oil 

 by Gautiee and Mouegues (1888). It is the first known 

 hydrolutidine. It is a colorless, somewhat oily, very alka- 

 line and caustic liquid, the odor of which is sharp, but 

 somewhat agreeable when dilute. It absorbs carbonic acid 

 from the air, darkens and thickens ; is feebly soluble in 

 water, and boils at 199° at 760 mm. pressure. The salts 

 are bitter to the taste. 



The hydrochloride crystallizes in a confused mass of 

 needles or in plates. The nitrate reduces silver nitrate — a 

 property of all hydropyridine bases (Hofmann). The 

 sulphate forms fine stellate deliquescent needles. 



The platinochloride is readily precipitated from concen- 

 trated solutions as a canary-yellow precipitate. From 

 warm solutions it crystallizes in lozenge-shaped plates which 

 are often imbricated. On boiling with water it loses hydro- 

 chloric acid and forms (C7H,iNCl)2PtC]2, which possesses a 

 lighter color, is more soluble than the normal salt, and crys- 

 tallizes confusedly. 



The aurochloride crystallizes in needles which form fan 

 or lozenge-shaped masses. It is scarcely altered even in hot 

 water. 



The loDOMBTHYLATE, CjHiiN.C'H3l, is obtained by mix- 

 ing, in the cold, the base and methyl iodide. The colorless 

 compound thus obtained is soluble in water and in alcohol, 

 and possesses a disagreeable, somewhat nauseating odor. 

 Treated with potash it yields a colorless, aromatic, very 

 alkaline oil. 



The base on oxidation with boiling potassium perman- 



