4-methyl-1-[(4-methylpyridin-1-ium-1-yl)methyl]pyridin-1-ium,dibromide

methyl 1-(bromomethyl)-2-oxocyclopentane-1-carboxylate

2-cyclohexylethynoxy-tri(propan-2-yl)silane

ethyl 2-(bromomethyl)-2-methyl-3-oxobutanoate

1H-十三氟己烷