1 P26 4-[2-(1,1,3,3-tetramethyl-2,3-dihydro-1h-inden-5-yl)-1,3-dioxolan-2-yl]benzoic acid 1.000 2 BM6 4-[2-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-naphthalen-2-yl)-[1,3]dioxolan-2-yl]-benzoic acid 0.897