Sn containing ordered mesoporous silicate with cage type Fm3m cubic structure, Sn-KIT-5, with varying Si/Sn ratio was successfully synthesized by using Pluronic F127 triblock copolymer as a structure directing agent. Successful incorporation of Sn was achieved without any pH adjustments. The synthesized samples were methodically characterized by suitable analytical techniques. Based on the loading of Sn, isolated Sn4+ species and SnO2 particles were confirmed by angle XRD, Diffuse Reflectance UV-vis and XPS studies. The N-2 sorption studies revealed specific surface area of 1034-807 m(2)/g, total pore volume of 0.68-0.42 cm(3)/g and cage diameter (pore size) of 8.9-9.4 nm. Further, Sn-KIT-5 possessed majorly Lewis acidic sites with total acidity of 73-139 mu mol/g were confirmed from the Pyridine adsorbed FUR and NH3 desorbed TPD methods. Finally, this synthesis of mesoporous Sn-KIT-5 with above mentioned properties will open new applications for catalysis. (C) 2015 Elsevier B.V. All rights reserved.