Cat. Name CAS. Structure Purity
M110349 dihydro-1,4-ethano-1H,3H-thieno(3,4-c)thiophene-3, 129679-44-3 dihydro-1,4-ethano-1H,3H-thieno(3,4-c)thiophene-3,6(4H)-dione ≥ 95%