64305-36-8 Butanoic acid,4-(1-carboxy-1,2,2,2-tetrafluoroethoxy)-2,2,3,3,4,4-hexafluoro-, 1-ethylester, potassium salt 64306-03-2 5H-2,4a-Epoxy-4H-naphtho[1,8-de]-1,3-dioxepin-7-ol,octahydro-7a-methyl-10-(1-methylethyl)-2-(2-phenylethenyl)-, [2S-(2a,4aa,7b,7ab,10a,10ab,10ba)]-