Thymalin is a natural biologically active polypeptide mixture isolated from calf thymus tissue, widely studied in immunology and immune-regulation research. It is supplied as a high-purity white lyophilized powder, >=99% by HPLC, in sealed vials for laboratory use. Thymalin is investigated for its regulatory effects on immune cell development and immune balance, and researchers use it to explore the biological functions of thymic peptides and related immunological mechanisms. As a tissue-derived polypeptide mixture, it does not have a single unified CAS number for all batches. The lyophilized format provides good stability and reproducible reconstitution for consistent dosing. Strict batch quality control is maintained and COA can be provided on request. For storage keep the sealed vial at 2-8 degree C away from light and moisture; -20 degree C is recommended for long-term storage. The thymus-derived peptide complex is examined in immunosenescence and immune-recovery research, and investigators study its effects on lymphocyte differentiation. As a complex preparation it also attracts standardization studies. The lyophilized powder is supplied with batch records. Each production lot is tracked from synthesis through lyophilization and final testing, ensuring consistent quality across batches. Product specifications, storage conditions and reconstitution recommendations are provided with every shipment, and our sales team responds promptly to technical inquiries. Long-term supply arrangements are possible for frequent buyers. For detailed specifications, quotations or technical support, please contact our sales team directly. WhatsApp: +852 4423 6619, contact person: Aurora, Email: 18963519387@163.com. We reply to all inquiries promptly and are glad to provide batch information and shipping options. YIWU SHUNXIAN TRADING CO., LTD. is a professional supplier of high-purity research-grade peptides and matching laboratory consumables, dedicated to supporting global research teams for biochemical and life-science studies. We bridge qualified peptide raw-material resources with stable international logistics service, offering researchers and industry partners a dependable source for their laboratory development projects.