The Ald-PEG4-NHS ester is a high-performance, highly active bioactive reagent widely used in the field of biochemistry. This product has a unique structure, with an aldehyde group and an amino group at its core, connected by PEG (Polyethylene Glycol) segments, and linked to NHS (N-hydroxysuccinimide) through an ester bond. Its stable structure ensures biocompatibility and reactivity. The production process strictly follows GMP standards, involving multiple synthesis and purification steps to ensure high purity of the product. This product is commonly used in protein modification, drug development, and other scenarios. In biochemical research, it is often used to link biomolecules such as proteins and nucleic acids to achieve specific biological functions. Additionally, in drug development, it is also used for targeted delivery and sustained release of drugs. With its high professionalism and academic nature, this product provides strong support for scientific research and pharmaceutical development.