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
N-(3,4-Dimethoxyphenyl)-6,7-dimethoxyquinazolin-4-amine
6,7-Dimethoxy-N-phenylquinazolin-4-amine
N-(3-Bromophenyl)-6,7-dimethoxyquinazolin-4-amine hydrochloride
N-(3-Bromophenyl)-6,7-dimethoxyquinazolin-4-amine
4-((6,7-Dimethoxyquinazolin-4-yl)amino)phenol
N-(3-Bromophenyl)-6,7-dimethoxy-N-methylquinazolin-4-amine
N-(4-Chloro-2-fluorophenyl)-6,7-dimethoxyquinazolin-4-amine
3-((6,7-Dimethoxyquinazolin-4-yl)amino)-4-(dimethylamino)-N-methylbenzenesulfonamide
4-((3-Chloro-2-fluorophenyl)amino)-7-methoxyquinazolin-6-ol
4-((3-Chloro-2-fluorophenyl)amino)-7-methoxyquinazolin-6-yl acetate hydrochloride
4-((3-Chloro-2-fluorophenyl)amino)-7-methoxyquinazolin-6-yl acetate
4-((3-Chloro-4-fluorophenyl)amino)-7-(methoxy-D3)quinazolin-6-ol
Quinazoline-2,4-diamine
5-Fluoro-2,4-diaminoquinazoline
6-Bromoquinazolin-2-amine
2-Amino-8-methoxyquinazoline
5-Methoxyquinazoline-2,4-diamine
8-(Trifluoromethyl)quinazolin-2-amine
2-Amino-5-bromoquinazolin-4-ol
2,4-Dichloro-6-fluoroquinazoline
2,4-Dichloro-6-iodoquinazoline
2,4-Dichloro-6-methoxyquinazoline
2,4-Dichloro-8-methoxyquinazoline
2,4,5-Trichloroquinazoline
2,4-Dichloro-6-methylquinazoline
2,4-Dichloro-6-(trifluoromethyl)quinazoline
2,4-Dichloro-5-fluoroquinazoline
2,4,8-Trichloro-6-fluoroquinazoline
2,4,8-Trichloroquinazoline
2,4-Dichloro-8-methylquinazoline
