2,5-dimethyl-3,4-dioxohexan-2-yl hypochlorothioite

4-methyl-N'-(2,2,5,5-tetramethyl-4-oxodihydrothiophen-3(2H)-ylidene)benzenesulfonohydrazide

4,4-dimethyl-2-(2-propylidene)-3-thietanone

2,5-二甲基-2,4-己二烯

3-diazo-2,2,5,5-tetramethylthiolan-4-one