TB-500 2mg Lyophilized Powder

TB-500 2mg Lyophilized Powder is a synthetic Thymosin Beta-4 peptide raw material produced by our factory, consisting of 43 amino acids with N-terminal serine acetylation modification, supplied as lyophilized powder. TB-500 has the sequence Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro-Leu-Pro-Ser-Lys-Glu-Thr-Ile-Glu-Glu-Lys-Gln-Ala-Gly-Glu-Ser. The molecule contains one methionine residue and no cysteine, so there is no disulfide bond structure. Our TB-500 2mg Lyophilized Powder is processed by solid-phase synthesis and preparative chromatographic purification, finished as white lyophilized powder. 

 

As a factory with over 20 years in peptide synthesis, we have accumulated rich experience with long-chain acidic peptides in TB-500 2mg Lyophilized Powder production. The 43 amino acids contain large amounts of glutamic acid, aspartic acid, and lysine residues, with an isoelectric point of approx. 5.1. Such high-charge-density long-chain peptides are prone to peptide chain aggregation and coupling difficulties during solid-phase synthesis. We effectively improved crude product quality by using pseudoproline dipeptide building units to interrupt aggregation tendency, using stronger condensation reagents at difficult sites and extending reaction time. In purification, we optimized HPLC gradient conditions for good target-impurity separation. Every batch undergoes HPLC, mass spectrometry, and microbial testing with COA report, providing stable raw material support for customers' actin regulation, angiogenesis, and tissue repair research.

Our factory has over 20 years of technical accumulation in peptide synthesis and production, covering a total area of 25,000 square meters, with a core production area of a Class 100,000 GMP cleanroom (12,000 sqm), equipped with independent R&D laboratories, quality control testing centers, and raw material storage areas. The factory employs 118 people, including 25 R&D technicians, 35 QC inspectors, and 58 production workers. We have established an integrated fully automated solid-phase peptide synthesis production line using a closed production mode with automatic temperature and pH control, covering the entire process from amino acid charging, solid-phase synthesis, crude cleavage, chromatographic purification, desalting/concentration, sterile filtration, vacuum lyophilization to aseptic filling. The production line supports laboratory-scale R&D, pilot-scale amplification, and large-scale industrial mass production, with a stable monthly capacity of over 30,000 vials, and multiple GMP lines can be scheduled in parallel to ensure on-time delivery of large orders. We have long-term stable supply to multiple overseas traders in Europe, America, Southeast Asia, and North America, accumulating a good reputation in the international peptide raw material supply chain.

TB-500 2mg Lyophilized Powder uses sealed vial packaging, with outer shock-absorbing foam securing vials, then reinforced cartons, effectively resisting bumps and temperature fluctuations during international long-distance transport. Lyophilized peptides are stable during short-term room-temperature transport; we select appropriate logistics based on distance and seasonal conditions. DDP terms supported, with us responsible for full transport and customs clearance, delivering directly to customer's warehouse. Each order comes with COA report and qualification documents, tracking number provided after shipment with continuous status updates for full traceability. For large orders, outer carton labeling and packing list format can be customized.

We provide flexible payment terms. Standard spot products require 100% full payment with immediate production and shipment upon confirmation. Customized products require 50% advance to start production, with the remaining 50% settled before shipment. For long-term returning customers, more flexible arrangements can be negotiated. Large orders enjoy tiered discounts - larger volume means better unit price, specific discounts negotiable at inquiry. Settlement in USD and RMB supported. Trade terms default to DDP (Delivered Duty Paid), where we bear all transportation costs, insurance, and customs clearance from factory to customer's designated warehouse, greatly simplifying cross-border procurement.