2,5-bis(phenylsulfonyl)-1,3a,4,6a-tetrahydropentalene InChI=1/C20H18O4S2/c21-25(22,17-7-3-1-4-8-17)19-11-15-13-20(14-16(15)12-19)26(23,24)18-9-5-2-6-10-18/h1-11,14-16H,12-13H pentalene, 1,3a,4,6a-tetrahydro-2,5-bis(phenylsulfonyl)-