1821-20-1

• 常用中文名：2H-1-Benzopyran-3-carboxylic acid, 4-hydroxy-2-oxo-, ethyl ester
• 常用英文名：2H-1-Benzopyran-3-carboxylic acid, 4-hydroxy-2-oxo-, ethyl ester
• CAS号：1821-20-1
• 分子式：C₁₂H₁₀O₅
• 分子量：234.20500
• 发布时间：2016-02-12 04:53:30
• 更新时间：2025-08-25 09:48:33

名称

• 英文名: ethyl 4-hydroxy-2-oxochromene-3-carboxylate
• 英文别名: 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

物化性质

• 密度: 1.41g/cm3
• 沸点: 370.9ºC at 760 mmHg
• 分子式: C₁₂H₁₀O₅
• 分子量: 234.20500
• 闪点: 144.2ºC
• 精确质量: 234.05300
• PSA: 76.74000
• LogP: 1.67530
• 蒸汽压: 3.71E-06mmHg at 25°C
• 折射率: 1.603

安全

• 海关编码: 2932209090

合成路线

770719-70-5 ~64% 1821-20-1

文献：Athanasellis, Giorgos; Melagraki, Georgia; Chatzidakis, Haralambos; Afantitis, Antreas; Detsi, Anastasia; Igglessi-Markopoulou, Olga; Markopoulos, John Synthesis, 2004 , # 11 p. 1775 - 1782

50-78-2 ~% 1821-20-1

文献：Stefanou, Valentina; Matiadis, Dimitris; Melagraki, Georgia; Afantitis, Antreas; Athanasellis, Giorgos; Igglessi-Markopoulou, Olga; McKee, Vickie; Markopoulos, John Molecules, 2011 , vol. 16, # 1 p. 384 - 402

19725-33-8 ~% 1821-20-1

文献：Melagraki, Georgia; Afantitis, Antreas; Igglessi-Markopoulou, Olga; Detsi, Anastasia; Koufaki, Maria; Kontogiorgis, Christos; Hadjipavlou-Litina, Dimitra J. European Journal of Medicinal Chemistry, 2009 , vol. 44, # 7 p. 3020 - 3026

105-53-3 5538-51-2 ~% 1821-20-1

文献：Stadlbauer, Wolfgang; Prattes, Susanne; Fiala, Werner Journal of Heterocyclic Chemistry, 1998 , vol. 35, # 3 p. 627 - 636

上下游产品

上游产品  4
770719-70-5 50-78-2 105-53-3 5538-51-2
下游产品  2
1076-38-6 213181-26-1

海关

海关编码	2932209090
中文概述	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
Summary	2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%