| 中文名 | 5,3'-二羟基-6,7,4',5'-四甲氧基黄酮 |
|---|---|
| 英文名 | 5-hydroxy-2-(3-hydroxy-4,5-dimethoxyphenyl)-6,7-dimethoxychromen-4-one |
| 英文别名 |
3',5-Dihydroxy-4',5',6,7-tetramethoxyflavone
5,3'-Dihydroxy-6,7,4',5'-tetramethoxyflavone 4H-1-Benzopyran-4-one, 5-hydroxy-2-(3-hydroxy-4,5-dimethoxyphenyl)-6,7-dimethoxy- 5-Hydroxy-2-(3-hydroxy-4,5-dimethoxyphenyl)-6,7-dimethoxy-4H-chromen-4-one W1631 |
| 密度 | 1.4±0.1 g/cm3 |
|---|---|
| 沸点 | 614.3±55.0 °C at 760 mmHg |
| 分子式 | C19H18O8 |
| 分子量 | 374.341 |
| 闪点 | 222.1±25.0 °C |
| 精确质量 | 374.100159 |
| PSA | 107.59000 |
| LogP | 2.90 |
| 外观性状 | 黄色粉末 |
| 蒸汽压 | 0.0±1.8 mmHg at 25°C |
| 折射率 | 1.613 |
| 储存条件 | 2-8℃,干燥,密闭 |
| 危害码 (欧洲) | Xi |
|---|---|
| 海关编码 | 2932999099 |
| 海关编码 | 2932999099 |
|---|---|
| 中文概述 | 2932999099. 其他仅含氧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% |
| 申报要素 | 品名, 成分含量, 用途 |
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |