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) forgets about his mistress. He buys the Casket from her and offers it to Tanyushka, but she refuses. Turchaninov then claims that he wishes to marry the girl. She announces that she will only agree to the marriage if he shows her the Tsarina herself at the Malachite Room in Saint Petersburg. Turchaninov agrees. Dressed like a queen, Tanyushka arrives at the Palace, and walks directly to the Malachite Room. Tsarina enters the room, saying: "Now then, show me this nigh-handed maid". Upon hearing that Tanyushka frowns and says to Turchaninov: "What does this mean? I told ye to show