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CHEM FAB VORM E SCHERING
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CHEM FAB VORM E SCHERING
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Publication of GB191215684ApublicationCriticalpatent/GB191215684A/en
15,684. Chemische Fabrik auf Aktien (vorm. E. Schering). July 5, 1911, [Convention date]. 2-Phenyl-4-cinchoninic acid is produced by gradually adding one molecular proportion of pyroracemic acid, dissolved or not in alcohol, to a boiling alcoholic solution of one molecular proportion of benzylideneaniline.
GB191215684D1911-07-051912-07-04An Improved Process for the Manufacture of 2-phenylquinoline-4-carboxylic Acid.
ExpiredGB191215684A
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