3,6-二甲氧基-9H-咔唑，57103-01-2，OLED中间体

Puyang Huicheng Chemicals Co Ltd is an ISO9001:2000 certificated enterprise, and has the rights of self-managed import and export. Huicheng factory is located in Puyang - a scenic State-Level Sanitation City of China. The principal products of Huicheng are organic anhydrides, amines and esters which can be used for LED (light-emitting diode), OLED (organic light emitting display), coatings, pesticides, synthetic, etc.