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| CAS号 : | 740-33-0 |
精确质量 : | 298.08400 |
| 分子式 : | C17H14O5 |
logP : | 3.18280 |
| 分子量 : | 298.29000 |
PSA : | 68.90000 |
5-羟基-6,7-二甲氧基黄酮 | |
5-Hydroxy-6,7-dimethoxy-2-phenyl-4H-chromen-4-one | |
740-33-0 | |
C17H14O5 | |
298.29000 | |
68.90000 | |
3.18280 | |
298.08400 |
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1.621
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190.5ºC
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508.5ºC at 760 mmHg
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163-164ºC (chloroform , acetone )
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1.321g/cm3
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2914509090
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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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