Natsudaidain is an O-methylated flavonol, a type of chemical compound.

It can be isolated from Citrus plants[1] (Rutaceae).

The name of the molecule comes from Citrus natsudaidai (Natsumikan, lit.

"summer tangerine"), a fruit of Japan developed in 1740 with a particularly tart/sour taste.

This article about an aromatic compound is a stub.