A sample examined by Dragendorff yielded—strychnine, 0·8 per cent.; brucine, 3·2 per cent.
It might, therefore, be used to separate strychnine from brucine.
brucine melts at 151° into a pale yellow liquid, at higher temperatures becoming deep-brown.
It gives a red colour with brucine, turns the green sulphate of iron black, and with hydrochloric acid dissolves gold.
This weight gives the combined weight of both strychnine and brucine picrates.
Monte Christo discourses on the poisonous properties of brucine, a drug rarely used in England, but largely used in France.
Strychnine is found in them in the proportion of ½–1½ and brucine ½%–1.4%.
In a physiological sense, brucine may be considered a diluted strychnine.
Strychnine and brucine exist in combination with igasuric acid discovered by Ludwig in 1873.
The strychnine and brucine are in about equal proportions, Dragendorff finding 1·187 per cent.