AgeSin® RA-FR16 series is a novel alkaline reducing agent specifically designed for the synthesis of polycarboxylate ether (PCE) superplasticizers. It includes two forms: AgeSin® RA-FR16P(Powder) and AgeSin® RA-FR16L (Liquid). Both products effectively replace traditional reducing agents (e.g., vitamin C, sodium formaldehyde sulfoxylate) in PCE production, enhancing fluidity retention and water reduction efficiency. They are stable in alkaline solutions and compatible with mainstream macromonomers like HPEG and TPEG.