英语词典化工词典

4H-1-Benzopyran-4-one,2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-6,7-dimethoxy-

4H-1-Benzopyran-4-one,2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-6,7-dimethoxy-


  • 中文别名:3,5,3’,4’-四羟基-6,7-二甲氧基黄酮
  • 中文释义:3,5,3’,4’-四羟基-6,7-二甲氧基黄酮;3,5,3\',4\'-四羟基-6,7-二甲氧基黄酮
  • 英文别名:eupatolitin;
    2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-6,7-dimethoxychromen-4-one;
    Eupatolitin;
    3,5,3',4'-tetrahydroxy-6,7-dimethoxyflavone;
    3,3',4',5-tetrahydroxy-6,7-dimethoxyflavone;
    6,7-dimethoxy-3,5,3',4'-tetrahydroxyflavone;
    6,7-dimethoy-3,5,3',4'-tetrahydroxylflavone;
    Eupatoletin 
  • CAS No.:29536-44-5
  • 分子式:C17H14O8
  • 分子量:346.28800
  • 精确分子量:346.06900
  • PSA:129.59000
  • InChI:The Key: WYKWHSPRHPZRCR-UHFFFAOYSA-N
  • 分子结构式:

物化性质

密度:
1.591g/cm3
沸点:
640ºC at 760 mmHg
闪点:
238.7ºC
折射率:
1.707
蒸汽压:
2.94E-17mmHg at 25°C

安全信息

密度:
1.591g/cm3
沸点:
640ºC at 760 mmHg
闪点:
238.7ºC
折射率:
1.707
蒸汽压:
2.94E-17mmHg 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%

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