3,3-diethyl 5,5-dimethyl 1,2,4-trithiolane-3,3,5,5-tetracarboxylate

[1,2,4]Trithiolane-3,3,5,5-tetracarboxylic acid tetraethyl ester

四甲基1,3-二硫杂环丁烷-2,2,4,4-四羧酸酯

tetramethyl 1,2,4-trithiolane-3,3,5,5-tetracarboxylate