2-chlorophenothiazin-3-one

2-chloro-7-(methoxymethoxy)phenothiazin-3-one

2-chloro-8-(methoxymethoxy)phenothiazin-3-one

2-chloro-7-(methoxymethoxy)-10H-phenothiazin-3-ol

8-chloro-2,2-dimethyl-10H-[1,3]dioxolo[4,5-b]phenothiazin-7-ol