Cover Picture: A Tale of Two Polymorphic Pharmaceuticals: Pyrithyldione and Propyphenazone and their 1937 Co-crystal Patent (Chem. Eur. J. 48/2011)

摘要

The Kofler contact method is used to prepare the co-crystal (center) of pyrithyldione (left) and propypheanzone (right), the existance of which is shown by the eutectic melting on either side of the co-crystal sliver. For more details see the Full Paper by A. Lemmerer, J. Bernstein, U. J. Griesser et al. on page 13445 ff.