Figure 14. Structure of phenothiazine, 1,2-dioxin, 1,4-dioxin, dibenzo-1.4-dioxin and 1,2-dithiin and 1,4-dithiin

From

Innovative Mnemonics Make Chemical Education Time Economic – A Pedagogical Review Article

Arijit Das

World Journal of Chemical Education. 2018, 6(4), 154-174 doi:10.12691/wjce-6-4-2