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| CAS号 : | 135-77-3 |
精确质量 : | 168.07900 |
| 分子式 : | C9H12O3 |
logP : | 1.71240 |
| 分子量 : | 168.19000 |
PSA : | 27.69000 |
1,2,4-三甲氧基苯 | |
1,2,4-Trimethoxybenzene | |
135-77-3 | |
C9H12O3 | |
168.19000 | |
27.69000 | |
1.71240 | |
168.07900 |
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n20/D 1.533(lit.)
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透明淡黄色至黄色-棕色液体
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>230 °F
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247 °C(lit.)
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19 - 21ºC
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1.126 g/mL at 25 °C(lit.)
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0.0413mmHg 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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DC2770000
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3
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29093090
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S23-S24/25
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Xi
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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>用香草醛以过氧化氢氧化，然后水解，并以硫酸二甲酯甲基化制取；或用对苯二酚以重铬酸钠、硫酸氧化，生成对苯二醌，后者以乙酸酐乙酰化，得1,2,4-苯三酚三乙酸酯，后者以硫酸二甲酯甲基化制得该品。</p> | |
<p>白内停的中间体。</p> |
