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甲基对硫磷

甲基对硫磷
IUPAC名
O,O-Dimethyl-O-p-nitrophenylphosphorothioate
别名 Azophos, Methyl parathion, O,O-Dimethyl O-4-nitrophenyl phosphorothioate, O,O-Dimethyl-p-nitrophenylthionophosphate
识别
CAS号 298-00-0  checkY
PubChem 4130
ChemSpider 3987
SMILES
 
  • COP(=S)(OC)Oc1ccc(cc1)[N+](=O)[O-]
InChI
 
  • 1/C8H10NO5PS/c1-12-15(16,13-2)14-8-5-3-7(4-6-8)9(10)11/h3-6H,1-2H3
InChIKey RLBIQVVOMOPOHC-UHFFFAOYAW
UN编号 2783
RTECS TG0175000
性质
化学式 (CH3O)2P(S)OC6H4NO2
摩尔质量 263.2 g/mol g·mol⁻¹
外观 White to tan, crystalline solid or powder
气味 pungent, garlic-like
密度 1.36 g/mL (20°C)
熔点 37 °C(310 K)
沸点 143 °C(416 K)
溶解性 0.006% (25°C)
蒸气压 0.00001 mmHg (20°C)
危险性
主要危害 reactive with strong oxidizers and water
PEL none
致死量或浓度:
LD50中位剂量
67 mg/kg (rat, dermal)[1]
10-25 mg/kg (male rat, oral)[2]
24 mg/kg (female rat, oral)[2]
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

甲基对硫磷(英语:Parathion methylmethyl parathion)是一种有机磷杀虫剂,带有一个硫代磷酸酯基团,结构上与乙基对硫磷类似,但由两个甲基代替了磷酸酯上的两个乙基。 甲基对硫磷曾用于棉花等作物的病虫害防治,但现在大部分国家都已经禁止使用[1]

参考资料

  1. ^ 1.0 1.1 Skin notation profile: Methyl Parathion (PDF). NIOSH. (原始内容存档 (PDF)于2017-02-22). 
  2. ^ 2.0 2.1 Methyl Parathion. 1988 OSHA PEL Project Documentation. NIOSH. 28 September 2011 [2020-08-19]. (原始内容存档于2017-06-24). 

外部链接

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甲基对硫磷
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