223387-33-5 BENZOIC ACID, 3,4,5-TRIS(PHENYLMETHOXY)-, (2R,2'R,3R,3'R,4R)-2,2'-BIS[3,4-BIS(PHENYLMETHOXY)PHENYL]-3,3',4,4'-TETRAHYDRO-5,5',7,7'-TETRAKIS(PHENYLMETHOXY)[4,8'-BI-2H-1-BENZOPYRAN]-3,3'-DIYL ESTER 6947-44-0 (4aS,4bR,6aR,10aS,10bS,12aS)-10a,12a-dimethyldodecahydro-2H,4bH-6a,10-epidithionaphtho[2,1-f]chromene-2,8(7H)-dione