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CAS号: 1177261-73-2 英文名称: 6,7-DiMethoxy-2-(4-(tetrahydrofuran-2-carbonyl)piperazin-1-yl)quinazolin-4(1H)-one 英文同义词: Terazosin Impurity B;Terazosin EP IImpurity B;Terazosin Impurity 3(Terazosin EP Impurity B);6,7-DiMethoxy-2-(4-(tetrahydrofuran-2-carbonyl)piperazin-1-yl)quinazolin-4(1H)-one;6,7-Dimethoxy-2-[4-[(tetrahydro-2-furanyl)carbonyl]-1-piperazinyl]-4(3H)-quinazolinone;4(3H)-Quinazolinone, 6,7-dimethoxy-2-[4-[(tetrahydro-2-furanyl)carbonyl]-1-piperazinyl]-;Terazosin Hydrochloride Impurity Ⅲ：6,7-Dimethoxy-2-(4-(tetrahydrofuran-2-carbonyl)piperazin-1-yl)quinazolin-4(1H)-one 中文名称: 特拉唑嗪EP杂质B 中文同义词: 特拉唑嗪EP杂质B;盐酸特拉唑嗪杂质Ⅲ [1-(4-羟基-6,7-二甲氧基-2-喹唑啉基)-4-[(四氢呋喃基)碳酰基]-哌嗪];盐酸特拉唑嗪杂质Ⅲ [1-（4-羟基-6，7-二甲氧基-2-喹唑啉基）-4-[（四氢呋喃基）碳酰基]-哌嗪] 分子式: C19H24N4O5 分子量: 388.42 沸点 : 615.7±65.0 °C(Predicted) 密度 : 1.45±0.1 g/cm3(Predicted) 酸度系数(pKa): 1.60±0.20(Predicted)