Acta Cryst. (2013). C69, 1563-1566 [ doi:10.1107/S010827011303196X ]
Synopsis: The title 1,4-naphthoquinone is a chlorinated derivative of vitamin K3, which is a synthetic compound also known as menadione. Molecules are planar, lie on a crystallographic mirror plane (Z' = 0.5) and are connected to each other by C-HO hydrogen bonds, forming two-dimensional layers parallel to the ac plane.
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