Dear sir/madam,we take the change for introduce ourselves to you.luoyang huagong pharmchem co.,ltd is a special manufacture in api and api's intermediate,and have custome syntheses bussniss.we already passed ISO 9001:2000.we can offer commerical pramipexole,imatinib,sunitinib,sorafenib,vatalanib,if you have inquiry in anyone,pls contact to us.and if you have inquiry in custome syntheses,pls contact to us too.thank you very much.we have good price and excellent quantity.