Indacaterol, the key product of our company, anti-asthma new drug and its intermediates technology reaches a new level by the efforts of custom synthesis and research & development department. We have successfully got a 100 gram product indacaterol maleate, and indacaterol key intermediates 435273-75-9, 173140-90-4, 312753-53-0 were accumulated kilograms or more. Their technology process had been optimized greatly and the market development work is being further perfected.