It crystallizes in orange-red needles and its alcoholic solution fluoresces strongly.
The residue is dissolved in alcohol and to the cold saturated solution a cold alcoholic solution of picric acid is added.
Of the greatest importance is the alcoholic fermentation brought about by yeast cells (Saccharomyces cerevisiae seu vini); this follows the equation CH120 6 =2C 2 H 6 0+2CO 2, Pasteur considering 94 to 95% of the sugar to be so changed.
With picric acid it forms a sparingly soluble picrate, which melts at 145 0 C. On the condition of phenanthrene in alcoholic solution see R.
Aconitine (C33H45N013, according to Dunstan; C34H47NOH, according to Freund) is a crystalline base, soluble in alcohol, but very sparingly in water; its alcoholic solution is dextrorotatory, but its salts are laevorotatory.