Functional PEG

Functional PEG supplied by Sinopeg Biotech Co., Ltd. is a polyethylene glycol derivative designed for pegylation of therapeutic proteins and peptides. The product can be supplied with user‑defined molecular weights, typically ranging from 2 000 to 40 000 Da. End‑group functionality is also selectable, with common options such as NHS‑ester, maleimide or azide. The reagent is manufactured under controlled conditions and the supplier states that it meets ISO and SGS certification requirements.

Polyethylene glycol of this grade is widely used in the biopharma sector to improve solubility, extend circulatory half‑life and reduce immunogenicity of biologics. Typical purity for functional PEG is ≥ 95 % and the polydispersity index is kept below 1.2 to ensure consistent conjugation performance. The liquid appears colourless and viscous, dissolves readily in water and common organic solvents such as DMSO or DMF, and is stable when stored between - 20 °C and 25 °C. These characteristics align with standard industry expectations for long‑acting drug development reagents.

Buyers of functional PEG include pharmaceutical manufacturers, contract research organisations and vaccine developers seeking reliable conjugation chemistry. Sinopeg offers flexible minimum order quantities and can ship under CIF terms with documentation prepared for L/C payment, but exact MOQ and lead‑time should be confirmed directly with the supplier. Prospective importers are advised to request the specific molecular weight, end‑group selection and certification copies before placing an order.

Sinopeg Biotech Co., Ltd. is located in Xiamen, Fujian Province, China, at Room 805, Jianye Building D, Xiangan Industrial District, Xiamen Torch Hi‑Tech Industrial Zone, postal code 361100. The company is classified as an imported‑tier supplier with a harbor trust tier, indicating it operates under standard import verification protocols. Platform data shows a response rate of 0 % and no recorded average response time, so communication timelines should be verified directly with the supplier.

The firm lists functional polyethylene glycol reagents aimed at long‑acting pegylation processes in biopharmaceutical research and manufacturing. Its product description highlights customizable molecular weight and reactive end‑group options, and it references compliance with ISO and SGS standards, suggesting adherence to recognised quality management systems. No additional product lines or corporate history are disclosed in the source data.