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| CAS号 : | 529-84-0 |
精确质量 : | 192.04200 |
| 分子式 : | C10H8O4 |
logP : | 1.51260 |
| 分子量 : | 192.16800 |
PSA : | 70.67000 |
4-甲基七叶苷原 | |
4-METHYLESCULETIN | |
529-84-0 | |
C10H8O4 | |
192.16800 | |
70.67000 | |
1.51260 | |
192.04200 |
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1.651
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黄色针状晶体
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190.7ºC
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455.5ºC at 760 mmHg
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274-276 °C(lit.)
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1.456 g/cm3
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GN6384500
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2
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S26-S36
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Xi
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R36/37/38
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2932209090
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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>由苯醌与乙酐在浓酸存在下生成苯基三乙酸酯。在稀硫酸作用下与乙酰乙酸乙酯反应，将反应物倒入冰水中而析出甲基七叶亭粗品，过滤出的结晶用水重结晶，即得成品。</p> | |
<p>用作荧光指示剂。</p> |
