4H-1-Benzopyran-4-one,2-(3,5-dihydroxy-4-methoxyphenyl)-5-hydroxy-6,7,8-trimethoxy-
- 中文别名:4\',6,7,8-四甲氧基-3\',5,5\'-三羟基黄酮
- 英文别名:2-(3,5-dihydroxy-4-methoxyphenyl)-5-hydroxy-6,7,8-trimethoxychromen-4-one;
Flavone,3',5,5'-trihydroxy-4',6,7,8-tetramethoxy;
5,3',5'-trihydroxy-6,7,8,4'-tetramethoxyflavone;
Gardenin-E;
3',5,5'-Trihydroxy-4',6,7,8-tetramethoxyflavone
- CAS No.:29550-07-0
- 分子式:C19H18O9
- 分子量:0
- 精确分子量:390.09500
- PSA:127.82000
- InChI:The Key: PKCHTMJVPXNXSA-UHFFFAOYSA-N
- 分子结构式:
物化性质
- 密度:
- 1.442g/cm3
- 沸点:
- 689.2ºC at 760 mmHg
- 闪点:
- 249.4ºC
- 折射率:
- 1.632
- 蒸汽压:
- 1.25E-19mmHg at 25°C
安全信息
- 密度:
- 1.442g/cm3
- 沸点:
- 689.2ºC at 760 mmHg
- 闪点:
- 249.4ºC
- 折射率:
- 1.632
- 蒸汽压:
- 1.25E-19mmHg 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%