21056-77-9

• 常用中文名：1H-吡唑-5-羧酸乙酯
• 常用英文名：Ethyl 1H-pyrazole-3-carboxylate
• CAS号：21056-77-9
• 分子式：C₆H₈N₂O₂
• 分子量：140.140
• 发布时间：2018-06-03 08:00:00
• 更新时间：2025-08-25 15:04:46

名称

• 中文名: 1H -吡唑-5-羧酸乙酯
• 英文名: Ethyl 1H-pyrazole-3-carboxylate
• 中文别名: 1H-吡唑-5-羧酸乙酯
• 英文别名: 2H-Pyrazole-3,4-dicarboxylic acid diethyl ester; 3-Carbethoxypyrazole; 1H-Pyrazole-3-carboxylic acid, ethyl ester; 1H-Pyrazol-5-carbonitril; Pyrazol-5-carbonsaeure-aethylester; ethyl 1H-pyrazole-5-carboxylate; 5-Ethoxycarbonyl-pyrazol; Ethyl 1H-pyrazole-3-carboxylate; 1H-Pyrazole-3,4-dicarboxylic acid,diethyl ester; cyano-5 pyrazole; 2H-pyrazole-3-carboxylic acid ethyl ester; diethyl 2H-pyrazole-3,4-dicarboxylate

物化性质

• 密度: 1.2±0.1 g/cm3
• 沸点: 279.2±13.0 °C at 760 mmHg
• 分子式: C₆H₈N₂O₂
• 分子量: 140.140
• 闪点: 122.7±19.8 °C
• 精确质量: 140.058578
• PSA: 54.98000
• LogP: 0.63
• 蒸汽压: 0.0±0.6 mmHg at 25°C
• 折射率: 1.522
• 储存条件: 室温，避光，干燥，密封

安全

• 危害码 (欧洲): Xi

合成路线

181427-25-8 ~74% 21056-77-9

文献：Hanzlowsky, Andrej; Jelencic, Blanka; Recnik, Simon; Svete, Jurij; Golobic, Amalija; Stanovnik, Branko Journal of Heterocyclic Chemistry, 2003 , vol. 40, # 3 p. 487 - 498

64-17-5 59938-07-7 ~78% 21056-77-9

文献：Martins; Freitag; Flores; Zanatta Synthesis, 1995 , # 12 p. 1491 - 1492

617-35-6 ~% 21056-77-9

文献：Hanzlowsky, Andrej; Jelencic, Blanka; Recnik, Simon; Svete, Jurij; Golobic, Amalija; Stanovnik, Branko Journal of Heterocyclic Chemistry, 2003 , vol. 40, # 3 p. 487 - 498

64-17-5 1621-91-6 ~% 21056-77-9

文献：ARRAY BIOPHARMA INC.; BOYS, Mark Laurence; BRADLEY, Michael; DELISLE, Robert Kirk; HENNINGS, D. David; KENNEDY, April L.; MARMSATER, Fredrik P.; MEDINA, Matthew; MUNSON, Mark C.; RAST, Bryson; RIZZI, James P.; RODRIGUEZ, Martha E.; TOPALOV, George T.; ZHAO, Qian Patent: WO2011/79076 A1, 2011 ; Location in patent: Page/Page column 114 ;

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