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| CAS号 : | 497-25-6 |
精确质量 : | 87.03200 |
| 分子式 : | C3H5NO2 |
logP : | 0.05500 |
| 分子量 : | 87.07730 |
PSA : | 38.33000 |
恶唑烷-2-酮 | |
oxazolidin-2-one | |
497-25-6 | |
C3H5NO2 | |
87.07730 | |
38.33000 | |
0.05500 | |
87.03200 |
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1.506 (20ºC)
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黄色-米色结晶粉末
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165.8ºC
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220ºC (48 mmHg)
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86-89ºC
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1.204 g/cm3
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0.000252mmHg at 25°C
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Stable under normal temperatures and pressures.
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Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
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29322980
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S26-S36/37
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Xn
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R22; R36; R43
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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>由乙醇胺与尿素环合而得。将尿素、乙醇胺及二甲基甲酰胺加入反应锅内,搅拌加热至120℃,保温2h,再升温至150-160℃回流6h,冷却减压蒸出二甲基甲酰胺后,加无水乙醇析出结晶。过滤,醇洗,干燥,得2-噁唑烷酮,收率70%左右。</p> | |
<p>用于广谱抗癌药物卡氮芥和环己亚硝脲的合成。</p> |
