1,1,1-Trifluoro-6-methylheptane-2,4-dione 100667-61-6 2,4-Heptanedione, 1,1,1-trifluoro-6-methyl- 461-92-7 EINECS 207-319-6 Isovaleryltrifluoroacetone NSC 42614 Trifluoroacetylisovalerylmethane