phonetic a, similar to 呵; -azine, see 吖嗪

strokes 6
strokes after radical 3
吖啶 吖啶 a1 ding4
acridine (antiseptic and disinfectant)

吖嗪 吖嗪 a1 qin2
-azine; heterocyclic compound containing nitrogen in their ring such as pyridine 吡啶 C5H5N, pyrazine 噠嗪|哒嗪 C4H4N2 or pyrimidine 嘧啶 C4H4N2

氨吖啶 氨吖啶 an1 a1 ding4
aminoacridine or aminacrine (antiseptic and disinfectant)