TB-500 5 mg

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Cold-chain peptideRefrigerate after reconstitution. Diluent and lab supplies not included. Research use onlySupplied exclusively for laboratory investigation and development. Technical data Product specifications Specifications Lab Reports Storage & Handling TB-500 (Thymosin Beta-4) — 5 mg lyophilized Compound Class Synthetic Polypeptide · Analog of thymosin beta-4 (Tβ4) Form Lyophilized powder in sterile glass vial Quantity 5 mg per vial CAS Number 77591-33-4Copy Chemical Formula C212H350N56O78SCopy Molecular Weight 4963.49 g/mol Residues 43-amino-acid peptide Amino Acid 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-Gln-Glu-Lys-Gln-Ala-Gly-Glu-Ser-OH Copy one-letter Synonyms TB-500, Thymosin Beta-4, Tβ4, Thymosin β4 Verified Purity Batch-tested to 99.67% (HPLC) For laboratory research use only. Not for human or animal consumption. View certificates of analysis Independently verified This peptide is analyzed by an accredited US third-party laboratory before it ships. Accredited testing partner Identity and purity confirmed by MZ Biolabs (Tucson, AZ), a US DEA-licensed analytical facility, via HPLC purity analysis and mass-spectrometry identity confirmation under GLP standards. Published certificates of analysis Our third-party certificates of analysis are published on our website — no login required. TB-500 (Thymosin Beta-4)99.67% pure Most recent batch certificate of analysis for TB-500 (Thymosin Beta-4), issued by MZ Biolabs (Tucson, AZ). Tap to view full size. See all certificates of analysis Storage & handling Peptides are photo- and temperature-sensitive; handle per standard laboratory practice. Lyophilized storage: Keep the sealed vial cool, dry, and protected from light. For longer-term storage, freezing is standard practice for lyophilized peptides. After reconstitution: Refrigerate (approximately 2–8 °C) and follow your institution’s SOPs for aliquoting, handling, and disposal. Avoid repeated freeze–thaw cycles. Diluent not included: A suitable laboratory diluent and reconstitution supplies are not provided with this product. UV-resistant glass vial to help protect photo-labile peptides during storage. Tamper-evident seal to support chain-of-custody and inventory controls. Sourcing & quality Why source TB-500 from Sports Technology Labs Quality control across the research-peptide industry is inconsistent, and many suppliers do not publish third-party testing for their products. Independent verification of identity and purity is essential for reproducible research. Third-party tested & certified Verified by MZ Biolabs (Tucson, AZ), an accredited US laboratory, via HPLC and mass spectrometry, with batch-linked COAs. Lyophilized & packaged in America Freeze-dried into sterile, UV-resistant glass vials and packaged in the USA. Tamper-evident packaging Supports chain-of-custody, label transparency, and batch-linked traceability. 60-day money-back guarantee Transparent business, standard payment methods, no misrepresentation. Research context What is TB-500? TB-500 is a synthetic peptide corresponding to the full sequence of thymosin beta-4 (Tβ4), a naturally occurring 43-amino-acid polypeptide found widely across mammalian tissues. Tβ4 belongs to the beta-thymosin family of small, acidic, actin-binding peptides. Mechanistically, thymosin beta-4 is characterized in the biochemical literature as a major intracellular G-actin–sequestering peptide, meaning it binds monomeric actin and participates in cytoskeletal dynamics. It is studied as a research chemical to investigate Tβ4-related biology in experimental models. TB-500 is an experimental research chemical, supplied strictly for laboratory research. Sports Technology Labs makes no claims regarding its effects, and nothing in this listing should be interpreted as describing outcomes in humans or animals. Regulatory & compliance status Important regulatory information Not approved for human use TB-500 is an investigational research peptide. It is not approved by the FDA and is not a drug, food, dietary supplement, cosmetic, or peptide-therapy product. Marketing it for human use is unlawful. WADA-prohibited Thymosin beta-4 and related substances are prohibited by the World Anti-Doping Agency at all times under S2 (Peptide Hormones, Growth Factors, Related Substances and Mimetics) (ref. 3). Legal status for research In the United States, TB-500 is not a controlled substance and may be legally purchased and possessed for laboratory research use. Our position Sports Technology Labs are chemical suppliers, not medical providers. We do not condone or encourage consumer use of research compounds. Citations Scientific references Huff T, Müller CSG, Otto AM, Netzker R, Hannappel E. β-Thymosins, small acidic peptides with multiple functions. Int J Biochem Cell Biol. 2001;33(3):205–220. National Center for Biotechnology Information. PubChem Compound Summary for Thymosin β4 / TB-500 (CAS 77591-33-4): sequence, molecular formula, and molecular weight. PubChem, National Library of Medicine. WADA Prohibited List (2025), Section S2: Peptide Hormones, Growth Factors, Related Substances and Mimetics. WADA.org. Research use only. All products on this website are intended exclusively for laboratory research and development. They are not for human or animal consumption. These statements have not been evaluated by the U.S. Food and Drug Administration, and these products are not intended to diagnose, treat, cure, or prevent any disease. {“@context”:”https://schema.org”,”@type”:”ChemicalSubstance”,”name”:”TB-500 (Thymosin Beta-4)”,”alternateName”:[“TB-500″,”Thymosin Beta-4″,”Thymosin β4″,”Tβ4″],”identifier”:[{“@type”:”PropertyValue”,”propertyID”:”CAS”,”value”:”77591-33-4″}],”molecularFormula”:”C212H350N56O78S”,”molecularWeight”:”4963.49 g/mol”,”description”:”TB-500 (Thymosin Beta-4), 5 mg lyophilized, a synthetic 43-amino-acid polypeptide corresponding to thymosin beta-4, supplied for laboratory research use only. 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