
In the title molecule, C21H16O2, the naphthalene ring system is planar and the dihydronaphthalene ring is distorted from planarity. The dihydrobenzene ring adopts a flattened-boat conformation. The dihedral angle between the naphthalene and dihydronaphthalene ring systems is 64.13 (5)°. The hydroxyl and carbonyl O atoms are involved in O—H
O intramolecular hydrogen bonding.

Supporting information
![]() | Crystallographic Information File (CIF) |
![]() | Structure factor file (CIF format) |
CCDC reference: 130055