英语词典化工词典

4H-Pyran-2-carboxylicacid, 5-hydroxy-4-oxo-, methyl ester

4H-Pyran-2-carboxylicacid, 5-hydroxy-4-oxo-, methyl ester


  • 中文别名:5-羟基-4-氧代-吡喃-2-甲酸甲酯
  • 中文释义:5-羟基-4-氧代-吡喃-2-甲酸甲酯
  • 英文别名:methyl 5-hydroxy-4-oxopyran-2-carboxylate;
    5-HYDROXY-4-OXO-4H-PYRAN-2-CARBOXYLIC ACID METHYL ESTER;
    Komensaeure-methylester;
    4H-Pyran-2-carboxylic acid,5-hydroxy-4-oxo-,methyl ester;
    Methyl comenate;
    methyl 5-hydroxy-4-oxo-4H-pyran-2-carboxylate 
  • CAS No.:49652-51-9
  • 分子式:C7H6O5
  • 分子量:0
  • 精确分子量:170.02200
  • PSA:76.74000
  • InChI:The Key: ZPGGNADHMKRUDT-UHFFFAOYSA-N
  • 分子结构式:

物化性质

密度:
1.53g/cm3
沸点:
357.875ºC at 760 mmHg
闪点:
154.307ºC
折射率:
1.571

安全信息

密度:
1.53g/cm3
沸点:
357.875ºC at 760 mmHg
闪点:
154.307ºC
折射率:
1.571

海关数据

中国海关编码:2932999099

概述:
2932999099. 其他仅含氧杂原子的杂环化合物. 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:
2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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