Malachite green is retained in catfish muscle longer (HL = 10 days) than is the parent molecule (HL = 2.8 days). The (oral, mouse) is 80 mg/kg. Rats fed malachite green experience "a dose-related increase in liver DNA adducts" along with lung adenomas. Leucomalachite green causes an "increase in the number and severity of changes". As leucomalachite green is the primary metabolite of malachite green and is retained in fish muscle much longer, most human dietary intake of malachite green from eating fish would be in the leuco form. During the experiment, rats were fed up to 543 ppm of leucomalachite green,
The Malachite Box them so popular among the adult readers. They were exceptionally popular during the Great Patriotic War. The paperbacks were sent to the front line. The author received fan mail from the soldiers who asked to send them the book. The publication attracted a large number of folklorists, who collected tales near Sysert since 1940s and long after Pavel Bazhov's death. The characters of the Ural Mountains folklore such as the Mistress of the Copper Mountain became very well known after their appearance in Bazhov's "The Malachite Box". Sysert's old coat of arms (1982–2002) featured the Mistress as a lizard with