BERBERINE, C 20 H 17 N0 4, an alkaloid occurring together with the alkaloids oxyacanthine C18H19N03, berbamine C18H19N03, hydrastine C21H21N06, and canadine C 20 H 21 N0 4, in Berberis vulgaris; it also occurs in other plants, Berberis aristata, B.
His chief researches deal with the polymethylene compounds, the alkaloids, in particular hydrastine and berberine, and the camphors and terpenes.
(4) Isoquinoline group. The opium alkaloids: morphine, codeine, thebaine, papaverine, narcotine, narceine, &c.; and the complicated substances hydrastine and berberine.
Narcotine was shown to be methoxyhydrastine (II.) (hydrastine, the alkaloid of Golden seal, Hydrastis canadensis, was solved by E.