Beijing Chemsun PharmTech Co., Ltd

The main reactions we are skilled in are below:

Chlorination, bromination, fluorination,sulfonation,chlorosulfonation, diazotation, nitration, reduction, oxidation, esterification, etherification, elimination, cyclization, condensation, amination, amidation, hydrolysis,hydrogenation etc.

We are very strong in the synthesis of all kinds of sulfonyl chlorides and sulfonamides, especially those very difficult to synthesize.

Main products: Eltrombopag Darifenacin rufinamide cinacalcet solifenacin olopatadine pyrazines sulfonyl chlorides

Beijing Chemsun PharmTech Co., Ltd, located in Beijing Fengtai Science Park, is a competitive player in the global specialty fine chemical market. Focusing on developing the innovative technologies for organic synthesis,CHEMSUN has both the expertise and flexibility to produce a wide range of chemicals, such as active pharmaceutical intermediates, fluorine organic chemicals,chiral intermediates,and heterocyclic chemicals.

CHEMSUN also performs custom synthesis, contract manufacturing and toll manufacturing providing the bulk active ingredients and advanced intermediates.