4,4'-dimethyl-1,1'-decanediyl-bis-pyridinium,dibromide

2-(4-methylpyridin-1-ium-1-yl)-1-naphthalen-2-ylethanone,bromide

2-(4-methylpyridin-1-ium-1-yl)-1-naphthalen-1-ylethanone,bromide

2-(4-甲基吡啶-2-基)-1-苯基-戊烷-1-酮

1-(4-吡啶)-2-丁酮