bis(11-benzenesulfonyl-11,12-dihydroretinyl) sulfide
bis(11-benzenesulfonyl-11,12-dihydroretinyl) sulfone
11,20-dibenzenesulfonyl-11,12,19,20-tetrahydro-β-carotene
beta-carotene
bis[3,7,11,15-tetramethyl-5-(phenylsulfonyl)hexadeca-2,6,8,10,14-pentaenyl] sulfone