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 Adveyeva sung the Mistress of the Copper Mountain (mezzo-soprano), Dina Potapovskaya sung Katya (coloratura soprano). The 1954 ballet "The Tale of the Stone Flower" was created by Sergei Prokofiev. "Skazy", also called "The Stone Flower", was the 1987 play of the Maly Theatre. A lot of Soviet and Russian composers drew inspiration from "The Malachite Box". The suite "Skazy" was created by Grigory Frid in 1948. Alexey Muravlev based his symphonic poem "Mount Azov" (1949) on the tale "Beloved Name". In 1979 Margarita Kesareva created a series of piano pieces "Ural Book" (Уральская тетрадь), which included the movement "The Bear