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| CAS号 : | 600-22-6 |
精确质量 : | 102.03200 |
| 分子式 : | C4H6O3 |
logP : | -0.25160 |
| 分子量 : | 102.08900 |
PSA : | 43.37000 |
丙酮酸甲酯 | |
methyl pyruvate | |
600-22-6 | |
C4H6O3 | |
102.08900 | |
43.37000 | |
-0.25160 | |
102.03200 |
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透明至黄色液体
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n20/D 1.404(lit.)
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Stable under normal temperatures and pressures.
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103 °F
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2-8ºC
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1.13 g/mL at 25 °C(lit.)
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134-137 °C(lit.)
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III
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3
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2918300090
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UN 3272 3/PG 3
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3
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R10
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S23-S24/25-S16
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Xi; F
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品名, 成分含量, 用途 |
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2918300090 其他含醛基或酮基不含其他含氧基羧酸（包括酸酐、酰卤化物、过氧化物和过氧酸及该税号的衍生物）. 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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2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
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2918300090. Other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives. General tariff: |
二、制备方法:将88g(1mol)新蒸的丙酮酸、128g(4mol)无水甲醇、350ml和0.2g对甲苯磺酸一起加热回流过夜,在继续加流过程中,将回流液分层,不断放出下层液,直到回流液验以分层为止。将反应液分馏,收集136-140℃馏分,得丙酮酸甲酯,收率65-71%。 | |
三、用途:用于有机合成。 |
![3H-萘并[2,1-b]吡喃-3-酮](https://www.chemicalbook.com/CAS/GIF/4352-89-0.gif)
