As a technology-driven enterprise, BoRun is a professional manufacturer of various speciality chemicals, including pharmaceutical intermediates, agrochemical intermediates, organic Optoelectrical materials.We devotes to research and development, production and sales of various chemicals and have a profound experience in organic synthesis and full independence in new products development.With advanced equipment and strict management system, we are convinced that we can provoide comprehensive service from Lab-scale product development, custom manufacuring to mass production in the plant."Professional, Efficient and Excellent" is always our business philosophy and we sincerly hope to establish business relations with clients home and abroad and create a splendid future with common efforts togetherOur engaged team of scientists and technicians is able to develop and produce materials in following categories:1. OLED materials 2. Organic semiconductor materials ---OTFT (organic thin film transistor) ---OFET (organic field effect transistor) ---OSC (organic solar cell) ---DSSC (Dye-Sensitized Solar Cell) 3. Organic Photovoltaic Cell Material Intermediates 4. Organic intermediates 5. Boronic acids 6. ITO glass selling & patterning service 7. Custom synthesis 8.electrodeless lampMoreover, all products are tested by modern analytical methods to meet the highest quality standard. To ensure the service of just-in-time delivery, all products were kept in stock of semi-bulk quantities. Please feel free to contact us!!! Bipyridines (DSSC material):PRODUCT NAMES CAS NO. 4,4&＃39;-Dicarboxy-2,2&＃39;-bipyridine;2,2&＃39;-Bipyridine-4,4&＃39;-dicarboxylic acid 6813-38-3 4,4&＃39;-Dimethyl-2,2&＃39;-bipyridine 1134-35-6 4,4&＃39;-Dinonyl-2,2&＃39;-bipyridine 142646-58-0 4,4&＃39;-Dibromo-2,2&＃39;-bipyridine 18511-71-2 4,4&＃39;-Dichloro-2,2&＃39;-bipyridine 1762-41-0 4,4-Dicyano-2,2&＃39;-bipyridine 67491-43-4