On hydrastine

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1863
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Abstract
HYDRASTINE was detected by Durand, in Philadelphia, as early as 1851, who noticed its alkaline nature, but did not succeed in preparing it in a pure state.It is contained in Hydrastis Oanadensis, in which it is associated with berberine.Mr. J. D. Perrins, of' Worcester in England, first separated it from this plant in pure form, and described some of its properties, but did not institute an elementary analysis.At thet ime of Mr. Perrins' investigations, I had, prompted by the remarks of Prof. Procter of Philadelphia, also prepared pure hydrastine, and intended to analyze it j seeing, however, that Mr. Perrins had promised to study its composition, I did not con• tinue my investigations.After the lapse of more than a year, I do not any longer hesitate to finish my researches, and take the liberty to publish herewith the results.Hydrastine may be obtained by adding aqua•ammonia in slight excess to the liquid from which the berberine has been previously separated by an addition of chlorhydric acid.The pre• cipitate, obtained under these circumstances, is collected on a calico filter, freed by expre~sion from water, and mixed with strong alcohol, in which it easily dissolves by application of heat.On cooling, the hydrastine crystallizes readily, and may be pu•
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Authors F. Mahla
Journal american journal of science
Year 1863
DOI
10.2475/ajs.s2-36.106.57
URL
https://doi.org/10.2475/ajs.s2-36.106.57
Keywords Keywords not found

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