4H-1-Benzopyran-4-one,2-(3,4-dihydroxyphenyl)-5-hydroxy-
- 中文别名:4H-1-苯并吡喃-4-酮, 2-(3,4-二羟基苯基)-5-羟基-
- 中文释义:5,3,4-三羟基黄酮;4H-1-苯并吡喃-4-酮,2-(3,4-二羟基苯基)-5-羟基
- 英文别名:2-(3,4-dihydroxyphenyl)-5-hydroxychromen-4-one;
3',4',5-Trihydroxyflavon;
2-(3,4-Dihydroxy-phenyl)-5-hydroxy-chromen-4-on;
5,3',4'-Trihydroxyflavone;
2-(3,4-dihydroxy-phenyl)-5-hydroxy-chromen-4-one;
3',4',5-trihydroxyflavone
- cas No.:19852-25-6
- 分子式:C15H10O5
- 分子量:270.24
- 精确分子量:270.05300
- PSA:90.90000
- 分子结构式:
物化性质
- 密度:
- 1.548g/cm3
- 沸点:
- 544.4ºC at 760mmHg
- 闪点:
- 212.6ºC
- 折射率:
- 1.732
- 蒸汽压:
- 1.83E-12mmHg at 25°C
安全信息
- 密度:
- 1.548g/cm3
- 沸点:
- 544.4ºC at 760mmHg
- 闪点:
- 212.6ºC
- 折射率:
- 1.732
- 蒸汽压:
- 1.83E-12mmHg at 25°C
海关数据
中国海关编码:2914501900
- 概述:
- 2914501900 其他酮酚。监管条件:无。增值税率:17.0%。退税率:9.0%。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:
- 2914501900 other ketone-phenols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%