Abstract
Summary
Methylnaphthoquinone or methylnaphthohydroqui-none is the most active vitamin K compound known. It is as effective intravenously in an aqueous medium as orally in oil solution. Per os its potency is greater in water than in oil. The phosphate derivative is considerably less active. The sulfate is not as potent and not as rapidly absorbed by the organism as the phosphate. A new water-soluble vitamin K-active compound is described.
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