Independent research and development of impurities, familiar with the market and impurity characteristics; We can ship out on the same day if the products are in stock; Focus on impurity development of new products in the market; Expert in customizi

As a professional chemical R&D and synthesis supplier, Shanghai Forever Synthesis Co.,Ltd. is specialized R&D and synthesizing APIs and Impurities. Besides, we value more special service, that is, to customize chemical synthesis according to client’s

trans-4-Formylcinnamic acid