3,4-二甲氧基吡啶

[2,2'-联吡啶]-3,3',4,4'-四醇 1,1'-二氧化物

3,3',4,4'-Tetramethoxy-2,2'-bipyridine

2-(3,4-dimethoxy-1-oxidopyridin-2-ylidene)-3,4-dimethoxypyridin-1-ium 1-oxide

3-hydroxy-2-(3-hydroxy-4-oxo-1H-pyridin-2-yl)-1H-pyridin-4-one