CHEMISTRY OF THE PTOMAINES. 195 



Another lo.riiic was obtained by HuiKOKU (1887) in cult- 

 ures of the tetanus microlx- which produced complete tetanus, 

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

 allv a diainine. The platinoehloride forms plates which 

 begin to decompose at 240. The hydrochloride is very 

 deliquescent. (Jold chloride and picric acid form very 

 soluble compounds. Besides these three bases lie isolated 

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

 Tetaniiie). 



DIHYDROLUTIDINE, C 7 H U N, was found in cod-liver oil 

 by GAUTIER and MOURGUES (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 700 ram. pressure. The stilts 

 are hitter to the taste. 



The. hydroc-hloride 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 platinoehloride 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 boHing with water it loses hydro- 

 chloric acid and forms (C 7 H u NCl) 2 PtCl 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 IODOMETHYLATE, C 7 H U N.CH S I, 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- 



