4-Methylbenzaldehyde
（重定向自Tolualdehyde）
![](/Images/godic/202502/16/4-Methylbenzaldehyde-3D-balls1651.png")
4-Methylbenzaldehyde is a simple aromatic aldehyde. It is commercially available, but may be prepared from the Friedel-Crafts formylation of toluene with carbon monoxide and hydrogen chloride under Gattermann-Koch conditions:. 4-Methylbenzaldehyde has a cherry-like scent similar to benzaldehyde.