Either of two isomers of polycyclic aromatic ketones derived from naphthalene.(noun)
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Use "naphthoquinone" in a sentence
"In the very same year Doisy reported that, together with his associates, he had succeeded not only in determining the chemical structure of vitamin K - it was found to be a naphthoquinone derivate - but also in synthetically preparing in his laboratory a K vitamin identical with the natural one."
"Within this naphthoquinone category, there are two basic types of vitamin K."
"The anti-vitamin K activity was thought to be associated with the hydroxyl group attached to the naphthoquinone ring ofthe compound."