TB500(Thymosin B4 Acetate) | US Warehouse | Fast Shippingand Wholesales PriceCosmetic Peptide | 99.2% Purity | Lyophilized Powder
9 Inquiries
796043-06-6
Pharmaceutical Grade
99.5%
ningbo
peijia
5mg , 10mg , 15mg , 20mg or 30mg per vial,10vials/kit
2026-06-15
peptide
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Product Description
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Seller Information
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Inquiry History
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DescriptionBasic Info
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Product Name:
Peptide
CAS No.:796043-06-6
Molecular Formula:C21H30N2O6S
Molecular Weight:438.54
Categories:
Characteristics-
Density:
1.373±0.10 g/cm3(Temp: 25 °C; Press: 760 Torr)(predicted)
Boiling Point:605.408±63.00 °C(Press: 760.00 Torr)(predicted)
PKA:14.773±0.10(predicted)
Research-
Class:
Actin-sequestering protein / 43-amino-acid peptide
Status:Research compound — Not FDA approved (investigational: RGN-259 for dry eye / neurotrophic keratitis)
Mechanism:A naturally occurring 43-amino-acid peptide (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) that binds G-actin (sequesters monomeric actin), preventing F-actin polymerization. Promotes cell migration, angiogenesis, wound healing, and anti-inflammatory responses via integrin-linked kinase (ILK) and HIF-1α/VEGF pathways. TB-500 is the synthetic fragment Ac-LKKTETQ (MW ~895) often sold under this CAS.
Activity note:Thymosin Beta-4 is an actin-binding protein, not a receptor agonist. Functional activity is measured by actin sequestration (Kd ~0.7–1 μM) and cell migration assays, not EC₅₀.
Source:Goldstein AL, et al. Vitam Horm. 2003;66:257–296. RegeneRx RGN-259 clinical program.DOI
Clinical Development:
References-
DrugBank:PubChem:UNII:Disclaimer:
Thymosin Beta-4 (TB-500) is NOT FDA-approved for human therapeutic use. RGN-259 (Tβ4 ophthalmic solution) is an investigational drug not yet approved. TB-500 sold on research-chemical marketplaces is a synthetic fragment and is not an approved medicine. This listing is for industrial and laboratory research use only. It is not medical advice, a clinical recommendation, or an approved therapy description. Always verify regulatory status, purity, and intended use with the supplier and applicable authorities before purchase or use.
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Seller Information
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Business Type:
Trader
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Main Products:
peptide
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Location:
Hangzhou Peijia E-commerce Co., LTD
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Year of Establishment:
2026
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Inquiry History9 Inquiries
Country Product Purchase Quantity Date Posted
United States
Retatrutide 10mg Retatrutide 10mg
10 MT May 16, 2026
United States
Peptide
1 MT Feb 13, 2026
United States
Peptide
100 Jan 28, 2026
United States
Retatrutide 10 mg
10 MG Mar 4, 2026
Hongkong, China
Peptide
10000 MT Jan 6, 2026
Greenland
Peptide
10 MG Sep 2, 2026
Ireland
retatrutide 10mg
10 Mar 27, 2026
Canada
Peptide
10 G Mar 1, 2026
Canada
Peptide
1 MT Feb 24, 2026 Post an enquiry for this product
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