339018-98-3

1,1-dioxo-2H,3H,4H-1lambda6-thieno[2,3-b]thiopyran-4-yl butanoate 1,1-DIOXO-1,2,3,4-TETRAHYDRO-1LAMBDA6-THIENO[2,3-B]THIOPYRAN-4-YL BUTYRATE Butanoic acid, 5,6-dihydro-7,7-dioxido-4H-thieno[2,3-b]thiopyran-4-yl ester