3,3,6,6-Tetramethyl-9-(2-phenylethyl)-3,4,6,7,9,10-hexahydro-1,8(2H,5H)-acridinedione

In the title compound, C₂₅H₃₁NO₂, the phenyl ring is approximately perpendicular to the acridine moiety, whose planarity is lost as a consequence of lack of π-conjugation along the ring system. Intermolecular hydrogen bonding and van der Waals interactions stabilize the molecules in the crystal.

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