9-Aminoacridine是一种高荧光染料，用作防腐剂、突变剂及 pH 指示剂，也可作为 HIV 抑制剂抑制病毒复制，并与利福平联合用于耐药菌研究。

Mepacrine 2HCl is an acridine-derived yellow dye, previously used in the therapy and prevention of malaria and later as an antiprotozoal and immunomodulatory agent. It's also an inhibitor of phospholipase A2.

2-氨基吖啶酮常用作不饱和二糖的荧光标签 (λexc= 428 nm，λem= 525 nm)。