methyl 4-oxohexanoate

2,3,5-trichloro-6-ethylcyclohexa-2,5-diene-1,4-dione

2,3,5,6-tetrachloro-4-ethyl-4-hydroxycyclohexa-2,5-dien-1-one

12-oxotetradecanenitrile

dichloro-ethyl-sulfanylidene-λ⁵-phosphane