Aptonchem Co., Limited is founded by a group of senior chemists and marketing experts. Our core business is custom synthesis and contract manufacturing for APIs, Pharmaceutical intermediates, pesticide intermediates and special chemical reagent, from gram to multi ton scale. The sales office and chemical laboratory are located in Hangzhou, Zhejiang, our manufacture plant is established in Jiujiang, Jiangxi with fully equipped and scientific management, to meet the requirement of clean production. We can provide Amprenavir, Darunavir, Fosamprenavir calcium salt, Delavirdine, 3-Hydroxytetrahydrofuran, 5-Chlorooxindole, (S)-1-Benzyl-3-pyrrolidinol, Maraviroc, Raltegravir, L-biopterin, Prulifloxacin, Atazanavir sulfate, Lapatinib ditosylate, Entecavir hydrate, Adefovir, Erlotinib, Gefitinib, Imatinib mesylate, Nilotinib, Gemcitabine hydrochloride, Fludarabine phosphate, Argatroban, Posaconazole, Sitafloxacin, Fulvestrant, Letrozole, Masitinib, Axitinib, Sunitinib and so on. To get more information, please visit our website or send the enquiry to our email, We are willing to become your best partner, cordially welcome any contact by customers all over the world, to go to win-win relation and make a bright future for each other!