This product is a serum-free CHO cell culture medium, a specialized formulation developed based on the concept of chemical definition (CD). It is designed to support high-density suspension culture of Chinese hamster ovary cells and efficient recombinant protein expression. Its core formulation precisely regulates the ratios of essential amino acids, vitamins, and trace elements, combined with cellular metabolic engineering optimization. This effectively promotes growth rate, viability maintenance, and stable production of target products (such as monoclonal antibodies and therapeutic proteins) in specific CHO cell lines.