有機 ゆうき塩素 えんそ けい化合 かごう ものでしょう
yū kiensokeikagōmonodeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 有機塩素系化合物

1. Organochlorine compound, likely.; Probably an organochlorine compound.

Polite
Presumptive
Conjecture