As we prepare to welcome a season of strength, speed, and success, our team will be taking a short break to celebrate the Chinese New Year with our loved ones. Holiday Notice: We will be closed from February 15 to February 23. Normal business operations will resume on February 24. During this period, if you have any urgent inquiries or project needs, please feel free to: Leave us a message via our website: www.sinopeg.com Or email us at: sales@sinopeg.com We’ll get back to you promptly upon our return. Wishing you and your family a joyful, prosperous, and horse-powered New Year! #ChineseNewYear #YearOfTheHorse #SpringFestival #HolidayNotice #GlobalBusiness #Sinopeg #ClientCare #NewYear2026

Within the intricate system of Radiopharmaceutical Drug Conjugates (RDCs), there exists a component that, while seemingly auxiliary, is critically vital, directly impacting the drug's stability and targeting efficiency. This component is the monodisperse polyethylene glycol (PEG) derivative. Serving as the crucial linker in RDC drugs, it is quietly propelling tumor precision therapy into a new, more controllable and efficient phase. What are RDC Drugs? Structurally, Radiopharmaceutical Drug Conjugates (RDCs) primarily consist of a targeting ligand (Ligand, such as antibodies, peptides, or small molecules), a linker, a chelator, and a radioisotope. Their main mechanism involves using the targeting ligand to deliver the radioisotope to a specific target, leveraging the radiation effects of the radioisotope to achieve precise killing of tumor cells or imaging for medical diagnosis and treatment. (Image Source: WuXi AppTec Marketing Department WeChat Official Account) Globally, the R&D progress of RDC drugs is remarkable. Currently, over 10 RDC drugs have been approved for marketing, with several therapeutic radiopharmaceuticals achieving significant success in areas like neuroendocrine tumors and prostate cancer. These successes mark the formal entry of tumor treatment into a new era of precise targeted therapy. Compared to traditional chemotherapy, RDC drugs can act more precisely on tumor cells, improving treatment efficacy while reducing toxic side effects. Chinese pharmaceutical companies are also accelerating their deployment in this cutting-edge field. According to statistics from the MoShang Medical Database, as of now, over 120 domestic companies and institutions are involved in RDC R&D, demonstrating China's strong momentum in the field of nuclear medicine innovation. As an emerging force in tumor therapy, targeted radiopharmaceuticals stand at the forefront of the era's development, with their immense potential drawing significant attention. They are expected to become the next major breakthrough point in tumor treatment. The Wave of PEG-Modified Radiopharmaceutical R&D To date, numerous studies on PEG-modified peptide radiopharmaceuticals have been reported, and several radiopharmaceuticals in Phase II/III clinical trials have successfully employed PEG modification strategies. In the current wave of RDC R&D, high-quality, stably supplied key excipients are the cornerstone ensuring smooth R&D progress. As a dedicated player in the field of PEG derivatives, Sinopeg relies on its advanced synthesis and purification technology platform to provide a series of monodisperse PEG derivatives with well-defined structures, high purity, and functionalized termini, offering solid support for RDC drug R&D. As RDC drug R&D deepens, the demand for high-quality PEG derivatives will continue to grow. Professional and reliable suppliers will become an important force driving innovation in this field! Sinopeg boasts an extensive i...

Radioconjugate drugs—combining radionuclides with targeting ligands such as antibodies, peptides, or small molecules via chelators and linkers—represent a cutting-edge approach in precision medicine. By delivering radionuclides directly to disease sites, they enable targeted tumor ablation or highly accurate diagnostic imaging, revolutionizing both therapy and diagnostics. To enhance the stability, solubility, and pharmacokinetics of your radioconjugates, Sinopeg offers high-purity, monodisperse polyethylene glycol (PEG) derivatives. These well-defined PEG linkers ensure improved conjugation efficiency, reduced immunogenicity, and optimized in vivo performance—key factors for developing safe and effective radiopharmaceuticals. Whether you are designing novel radioligands or optimizing existing constructs, Sinopeg’s tailored PEG solutions can accelerate your R&D and help bring more precise, impactful treatments to patients. Reach out to explore how we can support your next-generation radioconjugate projects! Various Kingds And Grades Of Such Monodispersed Are Readily Avaliable| SINOPEG

Join Us at TIDES Europe 2025 in Congress Center Basel! Mark your calendars!TIDES Europe2025—the premier event for oligonucleotide and peptide therapeutics—is coming to Basel, Switzerland, on 11-13 November 2025. Visit SINOPEG at Booth #333 to explore cutting-edge solutions in: Custom PEG Derivatives (mPEG, heterobifunctional PEGs, branched PEGs) Lipid Nanoparticles (LNPs) & Lipidoids for nucleic acid delivery Innovative Linker Technologies & ADC Payloads Why Stop By? Discuss your formulation challenges with our PEGylation experts Discover high-purity excipients for mRNA, siRNA, and peptide therapies Learn how our GMP-grade materials accelerate preclinical-to-commercial transitions Spotlight Case Study: Ask us about our role in developing temperature-stable LNP formulations for a global COVID-19 vaccine partner! Schedule a 1:1 Meeting: Avoid the crowds—reserve your private session today: sales@sinopeg.com Can't attend? Explore our solutions online: http://www.sinopeg.com Let's shape the future of oligonucleotide and peptide therapeutics together! See you at #333. #TIDES2025 DrugDiscovery #LNPs #mRNA #PeptideTherapeutics #BiotechInnovation

Join Us at 2025 CPHI Worldwide Europe! SINOPEG's booth no. 8.0T48 Exciting news! 2025 CPHI Worldwide Europe is just around the corner, taking place October 28–30 at Messe Frankfurt. SINOPEG will be showcasing cutting-edge drug delivery system (DDS) solutions at Booth 8.0T48.    As your trusted partner in specialty chemicals and advanced drug delivery systems, we’re eager to share innovations that drive industry progress. Why visit us? Explore our latest portfolio of PEG derivatives, lipids, and custom synthesis services Discuss tailored solutions for your R&D and manufacturing challenges Connect face-to-face with our technical experts We warmly welcome friends, partners, and industry peers from around the globe to drop by!    Let’s collaborate to shape the future of pharma. Dates: October 28–30, 2025 Venue: Messe Frankfurt Our Booth: T48 (Hall 8.0) Ready to meet? Simply stop by!

Join Us at CPhI Worldwide 2025–The Premier Global Pharma Event!   We are excited to invite you to visitSINOPEG at CPhI Worldwide 2025, the world‘s leading pharmaceutical industry gathering. This premier event brings together industry leaders, innovators, and experts from across the entire pharmaceutical supply chain—including APIs, formulations, biopharma, and outsourcing services.   Event Details: Date: October 28–30, 2025 Location: Frankfurt, Germany Booth: 8.0T48   At Booth 8.0T48, we will showcase our comprehensive technical capabilities and global service solutions tailored to meet the evolving needs of the pharmaceutical industry. This is a great opportunity to explore how SINOPEG can support your business with innovation, quality, and reliability.   We look forward to connecting with you, discussing potential collaborations, and sharing insights into the future of pharma.   Save the date and stop by—we can’t wait to welcome you!   Warm regards, The SINOPEG Team

At the forefront of modern drug development, polyethylene glycol (PEG) derivatives play a crucial role. They act like an "invisibility cloak" for drug molecules, significantly enhancing therapeutic efficacy and safety, representing a revolutionary technology in the field of pharmaceutical chemistry.     1. What are Polyethylene Glycol (PEG) Derivatives?   Polyethylene Glycol (PEG) is a linear, water-soluble, highly biocompatible polymer synthesized from the polymerization of ethylene oxide. It is non-toxic, non-immunogenic, and has been approved by the U.S. FDA as a safe chemical substance for oral, injectable, and topical use.   PEG derivatives specifically refer to those PEG molecules that have been chemically modified to carry specific reactive functional groups (e.g., amino, carboxyl, maleimide, N-hydroxysuccinimide ester) at one or both ends of their molecular chains. These functional groups act like "grappling hands," enabling covalent binding to specific groups (e.g., amino, thiol groups) on proteins, peptides, antibodies, small molecule drugs, and even nanoparticles (like liposomes).   This process is known as "PEGylation". Through PEGylation, one or more PEG chains are attached to the drug molecule, fundamentally altering its physicochemical properties and in vivo behavior.     2. Applications in Modern Medicine   As a mature drug delivery and improvement strategy, PEGylation technology is extremely widespread in modern medicine, primarily serving the following purposes:   Increase Drug Solubility: Many hydrophobic drugs have poor solubility in water, making them difficult to formulate into injectable solutions. Attaching hydrophilic PEG chains can significantly enhance a drug's aqueous solubility.   Prolong Half-life, Reduce Dosing Frequency: ①Increase Molecular Size: The addition of PEG chains significantly increases the drug's molecular weight, making it less likely to be filtered through the glomeruli, thereby slowing renal clearance. ②Reduce Immune Recognition: The PEG chain acts like a protective shield, enveloping the drug surface, masking its antigenic epitopes, and reducing the chance of recognition and clearance by the immune system. ③Hinder Enzymatic Degradation: This same shielding effect also reduces the rate at which the drug is degraded by hydrolytic enzymes like proteases.   Reduce Immunogenicity and Toxicity:For protein-based drugs (e.g., enzymes, cytokines), PEGylation can mask their heterologous nature, reducing the likelihood of the body producing antibodies, thus minimizing allergic reactions. It can also modify toxic functional groups of certain drugs, improving their safety profile (therapeutic window).   Enhance Targeting (Passive Targeting): By prolonging the drug's circulation time in the bloodstream via PEGylation, the drug is more likely to accumulate in tissues with leaky vasculature, such as tumors or inflamed sites, through the Enhanced P...