Certain 2-anilino-4H-3,1-benzothiazines of the formula: ##STR1## wherein R.sub.1 is hydrogen and R.sub.2 is 4-dimethylamino, 5-chloro-2,4-dimethoxy or 3,4-dichloro; and R.sub.1 is chloro and R.sub.2 is 4-acetyl or 3-chloro are effective anthelmintic agents.
某些2-
苯胺基-4H-3,1-
苯并噻唑的化合物,其
化学式为:##STR1## 其中R.sub.1为氢,R.sub.2为4-
二甲氨基,5-
氯-2,4-二甲氧基或3,4-二
氯;而R.sub.1为
氯,R.sub.2为4-乙酰基或3-
氯,则具有杀虫作用。