13. The Isolation of Porphyroxine. 
By Jirenpra Natu RaksuHIT. 
Merck, in 1837, prepared from opium a substance contain- 
one of which is meconidine and another probably rhoeadine. 
Demselben (Annalen Supl., 1864-1865, 4, 50) noted that por- 
phyroxine described by Merck agrees with rhoeadine in method 
of preparation, properties and composition. The alkaloid now 
isolated was very likely a constituent of what K. L. Dey 
) 
orm ; the aqueous solution either of the base or of its chloride, 
s strongly levorotatory, thus limiting its resemblance to coda- 
mine. The fo O ine i 
minutes, then 100 parts of water are gradually added during 
one hour, rubbing with the pestle all the while. The solution 
's filtered, and the filtrate shaken with an equal bulk of ether 
for 10 minutes j i 
ed wae the petroleum ether is powdered in a mor : 
*d with ‘ten times its own weight of 10 per cent hydrochloric 
