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60.12%丁草胺乳剂对大鼠经口LD_(50):雌鼠为1514(1208～1897)mg/kg,雄鼠1585(1259～1995)mg/kg;对小鼠经口LD_(50):雌鼠为1153(864～1539)mg/kg,雄鼠为1143(841～1553)mg/kg。表明丁草胺的经口急性毒性在大小鼠和雌雄鼠之间无明显的种属或性别差异。对大鼠的经皮LD_(50)>3210mg/kg。按“农药急性毒性分级标准”,属低毒类农药。
60.12% butachlor emulsion on rats LD50: female 1514 (1208 ~ 1897) mg / kg, male 1585 (1259 ~ 1995) mg / kg; : 1153 (864-1539) mg / kg for females and 1143 (841-1553) mg / kg for males. Show that oral acute toxicity of butachlor in the size of mice and male and female mice no significant genus or gender differences. Percutaneous LD 50 in rats> 3210 mg / kg. According to “acute toxicity classification of pesticides”, is a low-toxic pesticides.