喹唑啉是具有C8H6N2的有机化合物.它是一个具有双环结构的芳香杂环,由两个稠合的六元芳香环、苯环和嘧啶环组成.它是一种浅黄色结晶固体,可溶于水.喹唑啉又称为1,3-二氮杂萘,其名称来源于喹啉的氮杂衍生物.虽然亲本喹唑啉分子本身在技术文献中很少被提及,但是取代的衍生物已经被用于医药用途,如抗疟疾和抗癌剂.喹唑啉是平面分子.它与苯并二氮嗪亚基的其它二氮杂萘类异构体:辛可林、喹喔啉和酞嗪
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