4H-1-Benzopyran-4-one,2-(4-bromophenyl)-
- 中文别名:4-溴黄酮
- 中文释义:4,-Bromoflavone;4-溴黄酮
- 英文别名:2-(4-bromophenyl)chromen-4-one;
4'-Bromo-flavone;
4'-bromofalvone
- CAS No.:20525-20-6
- 分子式:C15H9BrO2
- 分子量:301.1348
- 精确分子量:299.97900
- PSA:30.21000
- InChI:The Key: URZUAHXELZUWFE-UHFFFAOYSA-N
- 分子结构式:
物化性质
- 密度:
- 1.54g/cm3
- 熔点:
- 174-176ºC
- 沸点:
- 406.6ºC at 760 mmHg
- 闪点:
- 199.7ºC
- 折射率:
- 1.656
- 蒸汽压:
- 8.07E-07mmHg at 25°C
安全信息
- 密度:
- 1.54g/cm3
- 熔点:
- 174-176ºC
- 沸点:
- 406.6ºC at 760 mmHg
- 闪点:
- 199.7ºC
- 折射率:
- 1.656
- 蒸汽压:
- 8.07E-07mmHg at 25°C
海关数据
中国海关编码:2914700090
- 概述:
- 2914700090 其他酮及醌的卤化、磺化衍生物(包括硝化和亚硝化衍生物). 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: 2914700090 halogenated, sulphonated, nitrated or nitrosated derivatives of ketones and quinones, whether or not with other oxygen function Tax rebate rate:9.0% Supervision conditions:none VAT:17.0% MFN tariff:5.5% General tariff:30.0%