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甲苯嗪是西德拜耳公司开发的防除甜菜地杂草苗前和苗后应用的选择性除草剂。化学名称为4—氨基—3—甲基—6—苯基—1,2,4—三嗪—5—(4氢)酮。商品名称 Goltix,通用名称 Metamitron,代号为 BAYDRW1139。纯品为无色至浅黄色结晶,熔点为166.6℃,20℃时蒸气压小于10~(-5)毫巴汞柱,在酸性介质中稳定。甲苯嗪属于低毒农药。雄、雌大白鼠急性口服毒性 LD_(50)为1800～3000毫克/公斤,雄、雌小鼠 LD_(50)为1450毫克/公斤,雄狗 LD_(50)大于1000毫克/公斤;经皮毒性,雄、雌大白鼠均大于1000毫克/公斤/暴露24小时。对家兔耳朵皮肤和眼球结膜无刺激作用。以含本
Tolbutazine is a selective herbicide developed by West Bayer Company to control pre-emergence and post-emergence application of weed in beets. The chemical name is 4-amino-3-methyl-6-phenyl-1,2,4-triazine-5- (4hydroxy) ketone. Trade name Goltix, common name Metamitron, code-named BAYDRW1139. Pure product is colorless to light yellow crystal, melting point 166.6 ℃, 20 ℃ vapor pressure less than 10 ~ (-5) millibar of mercury in acidic medium stability. Tarazine belongs to the low toxicity pesticide. Male and female rats acute oral toxicity LD_ (50) of 1800 to 3000 mg / kg, male and female mice LD_ (50) to 1450 mg / kg, male dog LD_ (50) greater than 1000 mg / kg; , Male and female rats were greater than 1000 mg / kg / exposure 24 hours. Rabbit ear skin and eye conjunctiva no stimulation. With this