3-phthalimido-2-oxo-butyraldehyde bisthiosemicarbazone (5) (namely Tai-Ding-An, V 6133) exhibited marked inhibiting activity against Chlamydozoa trachomatis and some species of bacteria in vitro as well as against Walker 256 carcinoma in animals.

• 3-酞酰亚胺-2-氧-正丁醛双缩硫代氨基脲(5)具有明显的抑制沙眼衣原体、细菌和大鼠瓦克癌256的作用。