Zinc iris thiourea sulfate (ZTS) is one of the promising serniorganic crystals useful for nonlinear applications. The effect of hippuric acid doping On the growth aspects, structural and optical properties of ZTS crystal was investigated. Slow evaporation technique was employed to grow pure and 1 mot% hippuric acid doped ZTS (HAZTS) single crystals. Powder XRD analysis reveals the crystalline nature of the grown crystals. Both the crystals exhibit orthorhombic crystal structure. The lattice parameters of the grown crystals are: a =11.0466 angstrom, 15=7.6949 angstrom and c=15,6393 A (for pure ZTS); a=11,1302 ohm, 15=7.7081 A and c= 15.5033 A (for HAZTS). The UV-vis-NIR spectral analysis was carried out to study the effect of doping on the optical characteristics of the grown crystals. The crystal is transparent over the entire visible region. The bonding structure and molecular associations were analyzed by FTIR spectroscopy. Powder SHG test reveals the non-linear optical efficiency of the grown crystals. (C) 2014 Elsevier B.V. All rights reserved