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 Furthermore, Pavel Bazhov indicated that his stories can be divided into two groups based on tone: "child-toned" (e.g. "The Fire-Fairy", "Silver Hoof"), and "adult-toned" ("The Stone Flower", "Marko's Hill"). Denis Zherdev divided the stories into "gold" and "malachite" series, which begin with "Beloved Name" and "The Mistress of the Copper Mountain" respectively. In the mid-1930s Sverdlovsk Publishing House decided to publish the collection "Prerevolutionary Folklore of the Urals" (). In the summer of 1934 the folklorist Vladimir Biryukov was offered to make such a collection. The historian Andrey Ladeyshchikov became its chief editor. From August to December 1935 Biryukov collected