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品牌	货号	期货/现货	规格	价格	数量
罗恩	R030235-250mg	现货	250mg	250 折扣中
剑颀	需求量较大，更多产品规格和价格请联系我们张经理（电话/微信：13761527386），为您定制报价与合作方案。	现货	吨	0

详情介绍

需求量较大，更多产品规格和价格请联系我们张经理（电话/微信：13761527386），为您定制报价与合作方案。

化合物简介

Dimethyl tetrachloroterephthalate (DCPA, Dacthal) is an organic compound with the formula C6Cl4(CO2CH3)2. It is a colourless solid, although commercial samples can be off white. DCPA is the dimethyl ester of tetrachloroterephthalic acid. It is used as a preemergent herbicide. It kills grass and many common weeds without killing sensitive plants such as flowers, fruits, vegetables, turf, and cotton. DCPA was first registered for use in the United States in 1958. Production of DCPA was eventually discontinued by ISK Biosciences in 1998, but the large manufacturing company AMVAC began producing the product in 2001 for use in America. Sigma-Aldrich also manufactures DCPA for use in the USA under the name Pestanal. In Australia, DCPA is the active ingredient in agchem company Farmalinx's herbicide called Dynamo 750. Currently, DCPA is only used for eggplant, kale, turnips, and sweet potatoes.

基本信息

CAS：1861-32-1
中文别名：TCTP;2,3,5,6-四氯-1,4-苯二甲酸甲酯;氯酞酸二甲酯;2,3,5,6-四氯对苯二甲酸二甲酯;四氯对苯二甲酸二甲酯;二甲基敌草索;敌草索;
英文别名：DIMETHYL 2,3,5,6-TETRACHLOROTEREPHTHALATE;dimethyl tetrachloroterephthalate;Tetrachloroterephthalic Acid Dimethyl Ester;Tetral;Dacthalor;dimethyl 2,3,5,6-tetrachlorobenzene-1,4-dicarboxylate;Chlorthal-dimethyl,Dimethyl tetrachloroterephthalate;Tetrachloroterephthalic acid dimethyl ester;Chlorthal-methyl;Fatal;DCPA;1,4-dimethyl 2,3,5,6-tetrachloro-1,4-benzenedicarboxylate;chlorthal;Dimethyl Tetrachloroterephthalate;dacthal;Dimethyl tetrachloroterephthalate;dimethyl 2,3,5,6-tetra-chloroterephthalate;DIMETHYL TETRACHLOROTEREPHTHALATE;Chlorthal-dimethyl;
分子式：C10H6Cl4O4
分子量：331.964
精确质量：329.902
Psa：52.6

Logp：3.8734

生产方法
采用强甲基化剂(如重氮甲烷或硫酸二甲酯),使四氯对苯二甲酸烷基化;或由四氯对苯二甲酰氯与甲醇酯化而得。中间体四氯对苯二甲酰氯有两种主要合成方法。除草剂。对萌发至二叶期的稗草有显著的活性,对旱地马唐等芽前杂草也有良好的防除效果。

用途
除草剂。对萌发至二叶期的稗草有显著的活性,对旱地马唐等芽前杂草也有良好的防除效果。