英语词典化工词典

4H-1-Benzopyran-4-one,7-hydroxy-3-(4-hydroxy-3-methoxyphenyl)-

4H-1-Benzopyran-4-one,7-hydroxy-3-(4-hydroxy-3-methoxyphenyl)-


  • 中文别名:3-METHOXYDAIDZEIN
  • 中文释义:3\'-METHOXYDAIDZEIN;7,4\'-二羟基-3\'-甲氧基异黄酮
  • 英文别名:7,4'-dihydroxy-3'-methoxyisoflavone;
    3'-Methoxydaidzein;
    7-hydroxy-3-(4-hydroxy-3-methoxyphenyl)chromen-4-one;
    7,4'-dihydroxy-3'-methoxy-isoflavone;
    Isoflavone,4',7-dihydroxy-3'-methoxy;
    4',7-dihydroxy-3'-methoxyisoflavone 
  • CAS No.:21913-98-4
  • 分子式:C16H12O5
  • 分子量:0
  • 精确分子量:284.06800
  • PSA:79.90000
  • InChI:The Key: MUYAUELJBWQNDH-UHFFFAOYSA-N
  • 分子结构式:

物化性质

密度:
1.42g/cm3
熔点:
258-260℃
沸点:
534.5ºC at 760mmHg
闪点:
204.8ºC
折射率:
1.668
蒸汽压:
4.87E-12mmHg at 25°C

安全信息

密度:
1.42g/cm3
熔点:
258-260℃
沸点:
534.5ºC at 760mmHg
闪点:
204.8ºC
折射率:
1.668
蒸汽压:
4.87E-12mmHg 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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