1,3-OXATHIOLANE,2,2,4,5-TETRAMETHYL (CIS) 1,3-oxathiolane, 2,2,4,5-tetramethyl- 2,2,4,5-tetramethyl-1,3-oxathiolane InChI=1/C7H14OS/c1-5-6(2)9-7(3,4)8-5/h5-6H,1-4H