Single crystal highly oriented synthetic 2H-phase MoS2 crystals have been developed at our facilities in the USA starting from the powder making to crystallization. Our crystals are well-known for its low defect density, ultra-flat surfaces, and high crystallinity. Synthetic MoS2 samples have excellent layer by layer stacking with very small (0.3 degree) mosaic spread which enables you to exfoliate large monolayers with minimal amount of effort. Synthetic MoS2 is an indirect gap semiconductor (1.2 eV) but becomes highly luminescent in the monolayer from at 1.9 eV (quasi-particle / optical band gap). Synthetic MoS2 crystals are superior to natural MoS2 in in defects, electronic and optical performance, purity, and surface smoothness.