4H-1-Benzopyran-4-one,2-(3,4-dimethoxyphenyl)-5-hydroxy-6,7-dimethoxy-
- 中文别名:5-羟基-3\',4\',6,7-四甲氧基黄酮
- 英文别名:2-(3,4-dimethoxyphenyl)-5-hydroxy-6,7-dimethoxychromen-4-one;
5-demethylsinensetin;
5-Hydroxy-3',4',6,7-tetramethoxyflavone;
HTMF;
3'-O-methyleupatorin;
6,7,4',5'-tetramethoxy-5-monohydroxyflavone;
5-desmethylsinensetin
- CAS No.:21763-80-4
- 分子式:C19H18O7
- 分子量:0
- 精确分子量:358.10500
- PSA:87.36000
- InChI:The Key: QEWSAPKRFOFQIU-UHFFFAOYSA-N
- 分子结构式:
物化性质
- 密度:
- 1.309g/cm3
- 沸点:
- 556.8ºC at 760mmHg
- 闪点:
- 200.7ºC
- 折射率:
- 1.593
- 蒸汽压:
- 5.27E-13mmHg at 25°C
安全信息
- 密度:
- 1.309g/cm3
- 沸点:
- 556.8ºC at 760mmHg
- 闪点:
- 200.7ºC
- 折射率:
- 1.593
- 蒸汽压:
- 5.27E-13mmHg at 25°C
海关数据
中国海关编码:2914509090
- 概述:
- 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%
- 申报要素:
- 品名, 成分含量, 用途, 丙酮报明包装
- 摘要/Summary:
- 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%