吖啶是有机化合物和具有式C13H9N的氮杂环。吖啶是母环的取代衍生物。它是与蒽结构相关的平面分子，其中中心CH基团中的一个被氮气取代。与吡啶和喹啉的相关分子一样，吖啶是一种温和的碱性物质。它是一种几乎无色的固体。它在针中结晶。
Acridin-2-amine
1,2,3,4-Tetrahydroacridin-9-amine hydrochloride
6-Ethoxyacridine-1,4-diamine
7-Ethoxyacridine-3,9-diamine hydrochloride
N9-(2,2-Dimethoxyethyl)-7-ethoxyacridine-3,9-diamine
10-(Oxiran-2-ylmethyl)acridin-9(10H)-one
4-Nitroacridine
2-Bromo-9,9-dimethyl-9,10-dihydroacridine
3-(9-((3-Carboxypropyl)(tosyl)carbamoyl)acridin-10-ium-10-yl)propane-1-sulfonate
Acridin-4-ylmethanamine oxalate
9-Chloro-2,7-dimethoxyacridine
4-((6-Chloro-2-methoxyacridin-9-yl)amino)-2-((4-methylpiperazin-1-yl)methyl)phenol
9-Oxo-9,10-dihydroacridine-4-carboxylic acid
2-Bromo-9,9-dimethyl-10-phenyl-9,10-dihydroacridine
