SnBi4Te7 is a layered van der Waals topological insulator and narrow gap semiconductor with easy exfoliation characteristics. It belong to the trigonal crystal system with alternating Sn-Bi-Te layers to make up SnBi4Te7 stoichiometry. SnBi4Te7 crystals are grown using Bridgman growth technique and come with guaranteed easy exfoliation characteristics, 6N or higher purity, and excellent electronic performance