A degraded dehydroabietylamine thiophene imine (C24H30NS, Mr = 364.55) has been synthesized from dehydroabietic acid, and its structure was characterized by IR, 1H NMR spectroscopy and single-crystal X-ray diffraction. White crystals of the title compound crystallize in the monoclinic system, space group P21 with a = 5.9490(12), b = 16.337(3), c = 10.780(2), β = 92.21(3)o, V = 1046.9(3) 3, Z = 2, Dc = 1.156 g/cm3, λ = 0.71073 , μ = 0.162 mm-1, F(000) = 394, the final R = 0.0443 and wR = 0.0805 for 1325 observed reflections with I > 2σ(I). The imine group was directly attached to the chiral carbon atom of tricyclo hydrophenthenrane structure with a trans configuration. The dihedral angle between two aromatic rings is 88.3o.
