3,5-二羟基-6,7,8-三甲氧基-2-苯基-4H-1-苯并吡喃-4-酮

3,5-二羟基-6,7,8-三甲氧基-2-苯基-4H-1-苯并吡喃-4-酮

3,5-dihydroxy-6,7,8-trimethoxy-2-phenylchromen-4-one

14221-65-9

C18H16O7

344.31500

98.36000

2.89700

344.09000

1.635

213.1ºC

2.78E-14mmHg at 25°C

1.407g/cm3

579.7ºC at 760 mmHg

2914509090

品名, 成分含量, 用途, 丙酮报明包装

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%

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%