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| CAS号 : | 50439-47-9 |
精确质量 : | 404.11100 |
| 分子式 : | C20H20O9 |
logP : | 2.91420 |
| 分子量 : | 404.36700 |
PSA : | 116.82000 |
5,4'-二羟基-3,6,7,8,3'-五甲氧基黄酮 | |
5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,6,7,8-tetramethoxychromen-4-one | |
50439-47-9 | |
C20H20O9 | |
404.36700 | |
116.82000 | |
2.91420 | |
404.11100 |
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1.628
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234.8ºC
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1.44g/cm3
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658.8ºC at 760 mmHg
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2914509090
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品名, 成分含量, 用途, 丙酮报明包装 |
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2914509090 含其他含氧基的酮. 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:5.5% 普通关税:30.0% |
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HS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
