(3,3'-Bithiazolidine)-4,4'-dione, 2,2'-bis(4-fluorophenyl)-, (R*,S*)- (3,3'-Bithiazolidine)-4,4'-dione, 2,2'-bis(p-fluorophenyl)-, meso- 95035-83-9 meso-2,2'-Bis(p-fluorophenyl)(3,3'-bithiazolidine)-4,4'-dione