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 have fallen in love with the Ural's old storyteller P. Bazhov". Selected stories have been a part of school core curriculum since the Soviet Union, and are still used for education purposes nowadays. The Ministry of Education and Science of Russia included the tales in their 2013 list of "100 Recommended Books" for schoolchildren. Their effective pedagogical influence have been noted. "The Malachite Box" became a classic of Soviet children's literature, yet the stories continued to be popular among adults as well. Mark Lipovetsky believed the situation in the author's life added to the depth of the tales and made