1,1,2,2,3,3-Hexafluoro-1,3-bis[(1,2,2-trifluorovinyl)oxy]propane 2024년 3월 11일 L Biochem 1,1,2,2,3,3-Hexafluoro-1,3-bis[(1,2,2-trifluorovinyl)oxy]propane CAS # 13846-22-5 99%