1-PROPENE, 1,1,3,3,3-PENTAFLUORO-2-(TRIFLUOROMETHYL)- 1-Propene, 1,1,3,3,3-pentafluoro-2-trifluoromethyl- 382-21-8 4-01-00-00802 (Beilstein Handbook Reference) BRN 1783426 Isobutene, octafluoro- Octafluoro-sec-butene Octafluoroisobutylene PFIB Perfluoroisobutylene