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| CAS号 : | 1113-59-3 |
精确质量 : | 165.92700 |
| 分子式 : | C3H3BrO3 |
logP : | 0.03500 |
| 分子量 : | 166.95800 |
PSA : | 54.37000 |
溴丙酮酸 | |
Bromopyruvic acid | |
1113-59-3 | |
C3H3BrO3 | |
166.95800 | |
54.37000 | |
0.03500 | |
165.92700 |
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1.521
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白色至淡黄色结晶粉末
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库房通风低温干燥,与食品原料分开存放
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88.9ºC
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223.4ºC at 760 mmHg
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77-82 °C
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2.011 g/cm3
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0.0357mmHg at 25°C
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Stable at room temperature in closed containers under normal storage and handling conditions.
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UZ0840000
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3
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8
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S26-S36/37/39-S45-S27
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II
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UN 3261 8/PG 2
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C
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R20/21/22; R34
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2933990090
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2933990090. 其他仅含氮杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0% | |
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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<p>其制备方法是将丙酮酸中加入少许浓硫酸和溶剂二氯甲烷置于反应瓶中,滴加溴约需3.5h,并搅拌,有白色沉淀产生,再继续搅拌1h,用环己烷和石油醚稀释,然后冷却反应混合物得到结晶,过滤,用石油醚洗涤并干燥得到产品。</p> | |
<p>3-溴代丙酮酸是杀菌剂噻菌灵的中间体。</p> |
