721946-30-1 2-Butene, 1,1,2,3-tetrafluoro- 2-Butene, 1,1,2,3-tetrafluoro- Catalog No.: 1922341 Name: 2-Butene, 1,1,2,3-tetrafluoro- CAS: 721946-30-1 Formula: C4H4F4 Inquire about this product →