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| CAS号 : | 56882-52-1 |
精确质量 : | 217.99000 |
| 分子式 : | C9H8Cl2O2 |
logP : | 3.17010 |
| 分子量 : | 219.06500 |
PSA : | 26.30000 |
2,4-二氯苯甲酸乙酯 | |
ETHYL 2,4-DICHLOROBENZOATE | |
56882-52-1 | |
C9H8Cl2O2 | |
219.06500 | |
26.30000 | |
3.17010 | |
217.99000 |
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1.537
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111.8ºC
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1.305g/cm3
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272.8ºC at 760 mmHg
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2916399090
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品名, 成分含量, 用途, 丙烯酸、丙烯酸盐或酯应报明包装 |
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2916399090 其他芳香一元羧酸. 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:6.5% 普通关税:30.0% |
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2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
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2916399090. Other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives. General tariff: |
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其制备方法是将2,4-二氯苯甲酸、无水乙醇及苯投入反应器中,在剧烈搅拌下,缓缓加入浓硫酸,加毕,加热回流,反应结束,回收苯及过量的乙醇。放冷,用冰水洗涤,油层和水层分开,油层干燥,减压蒸馏得产品。也可用2,4-二氯苯甲酰氯和无水乙醇直接反应而制得。 | |
2,4-二氯苯甲酸乙酯是杀菌剂啶斑肟的中间体。 |