Alen specializes in pharmaceutical bulk drugs, pharmaceutical intermediates, drugs and other research, production and manufacturing process development and optimize technology services, fine chemical production and sales business. The company has hundreds of products, which cover areas: chiral compounds (non-natural, 偽 or 尾, protection or conservation of amino acids; chiral alcohols, acids, amines, etc.); heterocyclic series (pyridine, Piperidine derivatives; pyrazine, piperazine derivatives; Pyrrole, pyrrolidine derivatives; indole derivatives; quinoline, isoquinoline derivatives; indigo red, indigo red acid anhydride derivatives; pyrimidine derivatives; heterocyclic Butane derivatives; thiophene, thiazole derivatives); boric acid and phenylboronic acid series; benzene acetylene series; biphenyl series.