1,2-Bis(4-isobutoxycarbonyloxymethyl-3,5-dioxo-piperazin-1-yl)ethane 4,4'-Ethylenebis(1-(hydroxymethyl)-2,6-piperazinedione) bis(isobutyl carbonate) (ester) 98631-95-9 BRN 6031322 Carbonic acid, 1,2-ethanediylbis((2,6-dioxo-4,1-piperazinediyl)methylene)bis(2-methylpropyl) ester MST 16 Sobuzoxane Sobuzoxane [INN:JAN] Sobuzoxano [INN-Spanish] Sobuzoxanum [INN-Latin]