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| CAS号 : | 105-45-3 |
精确质量 : | 116.04700 |
| 分子式 : | C5H8O3 |
logP : | 0.13850 |
| 分子量 : | 116.11500 |
PSA : | 43.37000 |
乙酰乙酸甲酯 | |
Methyl acetoacetate | |
105-45-3 | |
C5H8O3 | |
116.11500 | |
43.37000 | |
0.13850 | |
116.04700 |
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n20/D 1.419(lit.)
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无色液体
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158 °F
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169-170 °C70 mm Hg(lit.)
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-28 °C
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460 g/L (20 ºC)
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1.077
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1.54mmHg at 25°C
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Stable under normal temperatures and pressures.
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Store in a cool, dry place. Keep container closed when not in use.
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AK5775000
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1
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S26
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2918300090
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Xi
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R36
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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: |
由双乙烯酮与甲醇反应制得。双乙烯酮与甲醇以浓硫酸为催化剂进行酯化,再经粗分馏、精馏得成品。双乙烯酮则由醋酸裂解而得。 精制方法:除含有游离的酸和醇外,还含有丙酮等杂质。精制时用碳酸钾或无水硫酸钠干燥后减压蒸馏。 | |
用作纤维素醚酯混合溶剂的成分,用于合成吡唑酮类药物和维生素B |
