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,
Italian submarine Malachite December 1942 she patrolled an area between the island of La Galite and Cape de Fer. She patrolled off the island of La Galite on January 4 and 5 1943 again. On January 21 "Malachite" was deployed to an area between Cape Carbon and Cape Bougaroun. At 4:55 on January 22 she sighted an incoming convoy heading to Bona. At 05:18 she fired four torpedoes, and dove to avoid an attack by the escorts. Two explosions were heard, but again British post-war documents contain no mention of this attack. On February 2, 1943 "Malachite" left Cagliari with a group of