page_title: Johann Frederik Eijkman
hierarchical_section_title: Johann Frederik Eijkman
context_page_description: Johan Fredrik Eykman or Johann Frederik Eijkman was a Dutch chemist.
context_section_description: Johan Fredrik Eykman or Johann Frederik Eijkman (19 January 1851 – 7 January 1915) was a Dutch chemist.
caption: Portrait published in 1898
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