2 4 7 8 3 July 8, 2019 16 32 64 128 2 x 4 7 8 3 2 4 6 8 7 3 1 2 4 7 3 8 2 3 4 7 8 pentachlorodibenzofuran 2 3 4 7 8 pecdf 2 3 4 7 8 9 (- 4 2 5 7 3 8 ) 4 7 8 3 1 2 as a fraction 1 2 3 4 7 8 hxcdf 1 2 3 4 7 8-hexachloro dibenzo-p-dioxin 7 9х 4 2 3х 8 2 7 8 3 4 z 1 2 3 4 7 8 as a fraction 2 3 4 7 8-pcdf 2 3 4 7 8-pentacles
