We are the largest manufacturer for Carvedilol and its intermediates in China, and so far our capacity of 4 intermediates has reached to 2-3 tons per month, respectively. Many large companies in India, Europe and Israel have become our clients of 4-hydroxy carbazole and 4-(2,3-epoxyropoxy) carbazole, and our sales quantity will be over 30 tons this year.Carvedilol [72956-09-03] EP5/BP2002 4-hydroxy carbazole [52602-39-8] >99.0%4-(2,3-epoxypropoxy) carbazole [51997-51-4] >99.0%2-(2-methoxyphenoxy)ethylamino HCl [64464-07-9] >99.0%N-[2-(2-methoxy phenoxy) ethyl] benzyl amine HCl [3246-03-5] >99.0%