2991-51-7 62587-64-8 69458-56-6 97123-70-1 EINECS 221-062-7 FC-128 Fluorad FC 128 GLYCINE, N-ETHYL-N-((HEPTADECAFLUOROOCTYL)SULFONYL)-, POTASSIUM SALT Potassium N-ethyl-N-((heptadecafluorooctyl)sulphonyl)glycinate