英语词典化工词典

ethyl 4-hydroxy-2-oxochromene-3-carboxylate

ethyl 4-hydroxy-2-oxochromene-3-carboxylate


  • 中文别名:(3E)-3-[乙氧基(羟基)甲亚基]-2H-色烯-2,4(3H)-二酮
  • 中文释义:(3E)-3-[乙氧基(羟基)甲亚基]-2H-色烯-2,4(3H)-二酮
  • 英文别名:ethyl 4-hydroxy-2-oxochromene-3-carboxylate;
    ethyl 4-hydroxy-2-oxo-2H-chromene-3-carboxylate;
    3-ethoxycarbonyl-4-hydroxycoumarin;
    4-hydroxy-2-oxo-2H-chromene-3-carboxylic acid ethyl ester;
    3-carbethoxy-4-hydroxy-coumarin 
  • CAS No.:1821-20-1
  • 分子式:

    C12H10O5

  • 分子量:234.20500
  • 精确分子量:234.05300
  • PSA:76.74000
  • InChI:The Key: RAGGBDBRGYOOED-UHFFFAOYSA-N
  • 分子结构式:

物化性质

密度:
1.41g/cm3
沸点:
370.9ºC at 760 mmHg
闪点:
144.2ºC
折射率:
1.603
蒸汽压:
3.71E-06mmHg at 25°C

安全信息

密度:
1.41g/cm3
沸点:
370.9ºC at 760 mmHg
闪点:
144.2ºC
折射率:
1.603
蒸汽压:
3.71E-06mmHg at 25°C

海关数据

中国海关编码:2932209090

概述:
2932209090. 其他内酯. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%
申报要素:
品名, 成分含量, 用途
摘要/Summary:
2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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