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| CAS号 : | 86-81-7 |
精确质量 : | 196.07400 |
| 分子式 : | C10H12O4 |
logP : | 1.52490 |
| 分子量 : | 196.20000 |
PSA : | 44.76000 |
3,4,5-三甲氧基苯甲醛 | |
3,4,5-Trimethoxybenzaldehyde | |
86-81-7 | |
C10H12O4 | |
196.20000 | |
44.76000 | |
1.52490 | |
196.07400 |
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1.524
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白色晶体
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163-165°C/10mm
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163-165 °C10 mm Hg(lit.)
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72-74 °C(lit.)
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slightly soluble
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1.133 g/cm3
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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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CU8462000
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29124900
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3
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S22-S24/25
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Xi; C
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R36/37/38
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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>1.由没食子酸（或单宁酸）经硫酸二甲酯甲基化、酯化，再用水合肼进行肼化反应，然后经赤血盐氧化制得。工业化生产的收率在70%以上。<br>2.由香兰醛经溴化、水解、甲基化而得。<br>3.以对硝基甲苯为原料，经氧化还原，再以亚硝酸钠重氮化、水解得对羟基苯甲醛，经溴化、二甲氧基化、甲基化而得。另外，由三甲氧基苯腈、对羟基苯甲醛也可以制备3,4,5－三甲氧基苯甲醛。</p> | |
<p>用于合成抗菌增效药甲氧苄氨嘧啶。</p> |
