Organic Benzotriazole-4-hydroxybenzoic acid (BHBA), a novel second order nonlinear optical single crystal was grown by solution growth method. The solubility and nucleation studies were performed for BHBA crystal at different temperatures 30, 35, 40 45 and 50 degrees C. Single crystal X-ray diffraction study reveals that the BHBA belongs to Pna2(1) space group of orthorhombic crystal system. The crystal perfection of BHBA was examined from powder and high resolution X-ray diffraction analysis. UV-visible and photoluminescence spectra were recorded to study its transmittance and excitation, emission behaviors respectively. Kurtz powder second harmonic generation Lest reveals that, the frequency conversion efficiency of BHBA is 3.7 Limes higher than that of potassium dihydrogen phosphate (KDP) crystal. The dielectric constant and dielectric loss values were estimated for BHBA crystal at various temperatures and frequencies. The mechanical properly of BHBA crystal was studied on (110), (010) and (012) planes by using Vicker's microharclness Lest. The chemical etching study was performed on (012) facer of BHBA crystal to analyze its growth feature. (C) 2015 Elsevier B.V. All rights reserved.