Asaleadingmanufacturer,HaichemCo.,Ltd.mainproductscoverhairdyes,activepharmaceuticalingredientsandspecialintermediateslikederivativesofpyridine,pyrazole,indoleetc.WehavetwoproductionsitesandoneR&Dcenterwithexperiencedchemists.　　ByhandlingHydrogenation,Chlorination,Ethoxylation,Acetylation,Alkylation,Amination(substitution),Diazotization,Nitration,Nitrosation,Cyclization,Sulphonation,Esterification,Etherification,SaltFormation,AmineandHydrazineDerivatisation,Haichemdoesc...