China origin TB500 is mainly used for anti-fibrosis and wound repair research, CAS#885340-08-9
TDS 10 Inquiries
885340-08-9
Pharmaceutical Grade
99%
Shenzhen
HANDOM CHEM
10 Vials per Kit
2026-01-31
Semaglutide,Tirzepatide,HCG,Retatrutide,Cagrilintide,Medetomidine
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Product Description
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Seller Information
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Inquiry History
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DescriptionECHEMI Editorial ReferenceTB 500 is a synthetically made version of TB4 that facilitates healing and recovery by helping build new blood vessels, muscle tissue fibers, blood cells, and facilitating cell migration. It acts on the muscular system and has anabolic properties. TB 500 is used primarily for race animals (horses and dogs).CertificatesBasic Info
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Product Name:
TB500
Other Name:TB500 fragment;L-Glutamine, N-acetyl-L-leucyl-L-lysyl-L-lysyl-L-threonyl-L-α-glutamyl-L-threonyl-;Thymosin Beta 4 Peptide Peptides Tb500 2mg/Vials 5mg/Vials;TB500 fragment acetate;TB500 Thymosin Beta 4 (TB4);Ac-LKKTETQ;Thymosin β4 TB500;TB500(Thymosin B4 AceTate) 5MG 10MG
CAS No.:885340-08-9
Molecular Formula:C38H68N10O14
InChIKeys:ADKDNDYYIZUVCZ-HLXZCORBNA-N
Molecular Weight:889.02
EC Number:232-660-2
Color/Form:White to Off-White
Categories:
Characteristics-
Density:
1.281±0.06 g/cm3(Predicted)
Boiling Point:1405.0±65.0 °C(Predicted)
PKA:3.20±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:
Manufactory
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Main Products:
Semaglutide,Tirzepatide,HCG,Retatrutide,Cagrilintide,Medetomidine
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Location:
RM702, Building 21, Liuhe Road, Ganjingzi Dist, Dalian, Liaoning, China
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Payment Terms:
TT against copy of documents,L/C,TT against B/L draft before shipment,100% TT in advance
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Average lead Time:
15
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Total Annual Revenue:
$5 million-$10 million
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Total Employees:
51-100
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Year of Establishment:
2020
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Inquiry History10 Inquiries
Country Product Purchase Quantity Date Posted
United States
TB 500
150 MG Apr 8, 2026
Canada
TB 500
1 KG May 8, 2026
United States
TB 500
20 G Feb 23, 2026
Italy
TB500
1000 mg Dec 30, 2024
New Zealand
TB500
100 MG Jun 24, 2024
United Kingdom
TB500(Thymosin B4 Acetate)
30 G Apr 22, 2026
United States
TB500
10 mg Aug 16, 2024
India
TB500
50 mg May 9, 2024
Poland
TB500 | Thymosin β 4 | CAS 885340-08-9 | TB 500
1 G Jul 26, 2025
Poland
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