Chemspace is by far the largest database of small molecules to search and buy. We offer you a huge number of off-the-shelf compounds provided by world-known suppliers. You, however, can expand the capabilities to design your molecules with make-on-demand analogs from the Chemspace database: https://chem-space.com/list/hash/ef3b35ebc4d6a1b366048594944f0046. Over 90% of our make-on-demand offering includes molecules that could be easily accessed from available reagents via optimized procedures and not custom-synthesized.