2(5H)-Furanone, 5,5'-oxybis[3,4-dichloro- 4412-09-3 Bis(3,4-dichloro-2(5)-furanonyl) ether Bis(3,4-dichlorofuranon-5-yl-2) ether Crotonic acid, 4,4'-oxybis(2,3-dichloro-4-hydroxy-, di-.gamma.-lactone GC 2466 Mucochloric anhydride NSC14027 WLN: T5OV EHJ CG DG EO- ET5OV EHJ CG DG