Beim Behandeln eines Gemisches isomerer 3-Chlor-2-hydroxy-2-methyl-butyronitrile; mixtures of/the/ both forms of 3-chloro-2-hydroxy-2-methyl-butyronitrile;

T=15°C; higher-boiling form of 3-chloro-2-hydroxy-2-methyl-butyronitrile;