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 Casket (fairy tale) that (e.g. Tanyushka) are never completely "normal". Marina Balina mentioned Freud's interpretation of the motif of a double as a symbolic manifestation of death. The theme of the person leaving for the mountains at the end of his life is present in the story. Similar plot device can be found in "Two Lizards". "The Malachite Casket" is considered to be one of the best stories in the collection. The style of the story was praised. "The Malachite Casket" has been a popular subject for analysis. During Soviet times, every edition of "The Malachite Box" was usually prefaced by an essay