(3,3'-Bithiazolidine)-4,4'-dione, 2,2'-bis(3-fluorophenyl)-, (R*,S*)- (3,3'-Bithiazolidine)-4,4'-dione, 2,2'-bis(m-fluorophenyl)-, meso- 95035-81-7 meso-2,2'-Bis(m-fluorophenyl)(3,3'-bithiazolidine)-4,4'-dione