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The synthesis and crystal structure of the title compound, C30H29NO, are described. This compound is a member of the chiral dihydroisoquinoline-derived family, used as building blocks for functional materials and as source of chirality in asymmetric synthesis, and was isolated as one of two diastereomeric β-amino alcohols, the title molecule being found to be the (S,R) diastereoisomer. In the crystal, molecules are packed in a herringbone manner parallel to (103) and (10\overline{3}) via weak C—H...O and C—H...π(ring) interactions. Hirshfeld surface analysis showed that the surface contacts are predominantly H...H interactions (ca 75%). The crystal studied was refined as a two-component inversion twin.