IV. Researches into the constitution of the opium bases. Part II.—On the action of hydrochloric acid on codeia

Abstract

Codeia and morphia are, as is well known, homologous, only differing in composition by CH 2 . Both of them contain one atom of hydrogen replaceable by organic radicals, from which it appears that methyl-morphia (which does not contain a replaceable atom of hydrogen) is only isomeric with codeia, and not identical. If, therefore, codeia be morphia where H is replaced by CH 2 , the atom of hydrogen so replaced must be one of those contained in one of the radicals which enter into the composition of morphia.