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4H-1-Benzopyran-4-one,5,7-dihydroxy-2-(2,4,5-trihydroxyphenyl)-

4H-1-Benzopyran-4-one,5,7-dihydroxy-2-(2,4,5-trihydroxyphenyl)-


  • 中文别名:5,7-二羟基-2-(2,4,5-三羟基苯基)-4H-1-苯并吡喃-4-酮
  • 英文别名:isoetin;
    5,7,2',4',5'-Pentahydroxyflavone;
    5,7,3',4',6'-Pentahydroxy-flavon;
    Isoetin;
    5,7-dihydroxy-2-(2,4,5-trihydroxyphenyl)chromen-4-one;
    5,7-dihydroxy-2-(2,4,5-trihydroxy-phenyl)-chromen-4-one 
  • CAS No.:1621-84-7
  • 分子式:C15H10O7
  • 分子量:302.2357
  • 精确分子量:302.04300
  • PSA:131.36000
  • InChI:The Key: DSNIERNBMAVNJI-UHFFFAOYSA-N
  • 分子结构式:

物化性质

密度:
1.763g/cm3
沸点:
682.4ºC at 760mmHg
闪点:
263.3ºC
折射率:
1.804
蒸汽压:
3E-19mmHg at 25°C

安全信息

密度:
1.763g/cm3
沸点:
682.4ºC at 760mmHg
闪点:
263.3ºC
折射率:
1.804
蒸汽压:
3E-19mmHg 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%

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