5,7-二羟基-3,3,4,5-四甲氧基黄酮

5,7-二羟基-3,3,4,5-四甲氧基黄酮

5,7-dihydroxy-3-methoxy-2-(3,4,5-trimethoxyphenyl)chromen-4-one

14585-04-7

C19H18O8

374.34100

107.59000

2.90560

374.10000

1.639

214.3ºC

1.02E-14mmHg at 25°C

1.44g/cm3

594.2ºC at 760mmHg

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%