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A new chalcone, 1-(3,4-dimethoxyphenyl)-3-(3-hydroxyphenyl)prop‑2-en-1-one (3), was synthesized, characterized by spectroscopy (IR, ¹H, ¹³C NMR, LC-MS) and single crystal X-ray diffraction method. The compound crystallizes in the monoclinic crystal system (space group C2/c) with unit cell dimensions a = 34.940(6) Å, b = 5.4090(9) Å, c = 16.668(3) Å, β = 108.400(8)°, Z = 8, and V = 2989.1(9) ų. The dihedral angle between the terminal phenyl ring is 16.39 (10)^o and intramolecular hydrogen bond of the type C-H…O is observed. The intermolecular hydrogen bonds (O-H…O and C-H…O) and short contacts of the type C-H…π were involved in the crystal structure stabilization. The O-H…O and C-H…O intermolecular hydrogen bond generates R²₂(18) and R²₂(14) ring motifs, respectively. The intercontacts in the crystal packing were analyzed using Hirshfeld surfaces method using 2D fingerprint …