4H-1-Benzopyran-4-one,5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-
- 中文别名:VELUTIN
- 中文释义:VELUTIN;4\',5-二羟基-3\',7-二甲氧基黄酮;毡毛美洲茶素
- 英文别名:5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxychromen-4-one;
Velutin;
chrysoeriol-7-methyl ether;
5,4'-dihydroxy-7,3'-dimethoxyflavone;
luteolin 7,3'-dimethyl ether;
Flavoyadorigenin B
- CAS No.:25739-41-7
- 分子式:C17H14O6
- 分子量:314.28946
- 精确分子量:314.07900
- PSA:89.13000
- InChI:The Key: ROCUOVBWAWAQFD-UHFFFAOYSA-N
- 分子结构式:
物化性质
- 密度:
- 1.402g/cm3
- 沸点:
- 567.5ºC at 760 mmHg
- 闪点:
- 213.1ºC
- 折射率:
- 1.645
- 蒸汽压:
- 1.76E-13mmHg at 25°C
安全信息
- 密度:
- 1.402g/cm3
- 沸点:
- 567.5ºC at 760 mmHg
- 闪点:
- 213.1ºC
- 折射率:
- 1.645
- 蒸汽压:
- 1.76E-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%