Malachite green metabolized into LMG. Only the cation MG is deeply colored, whereas the leuco and alcohol derivatives are not. This difference arises because only the cationic form has extended pi-delocalization, which allows the molecule to absorb visible light. The leuco form of malachite green was first prepared by Hermann Fischer in 1877 by condensing benzaldehyde and dimethylaniline in the molecular ratio 1:2 in the presence of sulfuric acid. Malachite green is traditionally used as a dye. Kilotonnes of MG and related triarylmethane dyes are produced annually for this purpose. MG is active against the oomycete "Saprolegnia", which infects fish eggs in
The Malachite Box such magical help is no longer necessary, because the Soviet society has righted all the wrongs of a fairy-tale reality. Tatiana Kruglova comments that there is a clear split of characters based on their social class: there are working men, most often depicted as positive characters, and their masters, shown critically or ironically. But in the pre-war stories the class criteria existed as the background only. The conflict between the characters came from the collision between poetic and pragmatical, grand and common, irrational and rational. "The Malachite Box" and its author became enormously popular. It was met with significant praise