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 a crown, as did Yekaterinburg's coat of arms from 1973 to 1991. The early design of Polevskoy's coat of arms (1981) had an image of the Stone Flower. The current version, as well as the flag of the town, features the Mistress depicted as the golden lizard. The Malachite Casket became the symbol of the Urals. "The Malachite Box" is constantly republished, commented and illustrated. Not all stories are equally popular nowadays. The most popular tales were written between 1936 and 1939. Among the later stories, "A Fragile Twig" (1940), "The Fire-Fairy" (1940), "Tayutka's Mirror" (1941), "Ivanko Krylatko" (1943), "That