COMBI-BLOCKS is a manufacturer and worldwide supplier of a series of combinatorial building blocks, organics and fine chemicals. Our main products lines include boronic acids, imidazoles, indoles and oxindoles, anilines, nitrobenzenes, tetrahydropyrans, thiazoles, pyrroles, pyridines and carboxylic acids. You may find compounds by browsing through our product lists, Searching by Keywords, or Searching by Structure. Catalogs in pdf, Isis-Base or SD file are also available.