33543-95-2

• 常用中文名：ethyl 7-methyl-4-oxochromene-2-carboxylate
• 常用英文名：ethyl 7-methyl-4-oxochromene-2-carboxylate
• CAS号：33543-95-2
• 分子式：C₁₃H₁₂O₄
• 分子量：232.23200
• 发布时间：2017-07-08 12:38:20
• 更新时间：2025-08-24 10:44:53

名称

• 英文名: ethyl 7-methyl-4-oxochromene-2-carboxylate
• 英文别名: 4H-1-Benzopyran-2-carboxylic acid,7-methyl-4-oxo-,ethyl ester; ethyl 7-methyl-4-oxo-4h-chromene-2-carboxylate; 7-methyl-4-oxo-4H-chromene-2-carboxylic acid ethyl ester; 2-ethoxycarbonyl-7-methyl-chromone; ETHYL 7-METHYL-4-OXO-CHROMENE-2-CARBOXYLATE; Ethyl 7-methyl-4-oxo-4H-1-benzopyran-2-carboxylate; 2-carboethoxy-7-methyl-4-oxo-4H-1-benzopyran

物化性质

• 密度: 1.252g/cm3
• 沸点: 355.3ºC at 760 mmHg
• 分子式: C₁₃H₁₂O₄
• 分子量: 232.23200
• 闪点: 157.6ºC
• 精确质量: 232.07400
• PSA: 56.51000
• LogP: 2.27810
• 折射率: 1.562

安全

• 海关编码: 2918300090

合成路线

6921-64-8 95-92-1 ~65% 33543-95-2

文献：Sabui, Subir Kumar; Mondal, Pranab; Venkateswaran, Ramanathapuram V. Journal of Chemical Research - Part S, 2002 , # 9 p. 428 - 429

上下游产品

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海关

海关编码	2918300090
中文概述	2918300090 其他含醛基或酮基不含其他含氧基羧酸（包括酸酐、酰卤化物、过氧化物和过氧酸及该税号的衍生物）. 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:6.5% 普通关税:30.0%
申报要素	品名, 成分含量, 用途
Summary	2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%