L-Tryptophan CAS:73-22-3

Baoji Guokang Health Chemical Technology Co., Ltd has a subsidiary, Baoji Guokang Bio-Technology Co., Ltd. It is located in Baoji High-tech Zone,with epitomizing international, cooperative and honest. We are a young company full of action and energy, our profession improves us rapid progress, which satisfy our clients both in home and abroad. We are specialized in API's intermediates, fine chemicals and plant extracts.We toughly insist on that quality is always the most important item not only for us, but also for our clients. It is believed that we could be considered as the most powerful man in the area of ​​chemicals with combined strength in R&D and Marketing. We are a "customer first" company and believe that our success depends on double-wins.our customers are from more than 160 countries worldwide ,we work closely with every customer to support high quality business service. Our target purpose is "provide favorable value,convenient and flexible solutions for you."we promise: reasonable prices, short supplying period and satisfactory after-sales service. Buyers are welcome to contact us !