2,2'-bis-dibenzo[a,kl]xanthen-1-ylperoxy-[1,1']binaphthyl

[1,4]benzoquinone-bis-(N-phenyl oxime )

2,2,6,6-tetramethyl-1,4-dioxo-piperidinium

(diphenylgermane)n

2,2,6,6-tetramethyl-1-oxopiperidin-1-ium-4-ol