Alfa Aesar, part of the Johnson Matthey Group of companies, is a leading manufacturer and supplier of specialty and high purity chemicals available in quantities for research or production. Alfa Aesar offers a full-line of standard and custom manufactured organics including the full range of Lancaster Synthesis and Avocado Organics products. Thousands of key bulk items and many organic building blocks are stocked and ready-to-ship in Massachusetts, USA, Karlsruhe, Germany and Royston, England. Alfa Aesar also carries a broad range of catalysts and inorganic compounds in stock for immediate delivery.