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 Casket (fairy tale) Her appearance resembles that of the Mistress of the Copper Mountain. A female vagabond comes to their house and stays for a while, teaching Tanyushka silk embroidering. Nastasya is not happy with the arrangement, because she feels that Tanyushka "doesn't want to come to her own mother, but hugs a tramp". Nevertheless they become very close. One day, when the woman is alone with Tanyushka, the girl shows her the jewellery from the Malachite Casket, and in return the woman shows her a vision of a beautiful room decorated with malachite. She explains that the Malachite Room of the Tsar's