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TB-500 premium product

Cellular Peptide

TB-500

Thymosin Beta-4Tβ4TB4Thymosin β4

A 43-amino acid synthetic fragment of thymosin beta-4 that regulates actin polymerization and promotes cell migration in preclinical studies. Premium Direct-Supply Peptide.

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Quantity

1

From$149

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Verified Test Results

Every batch, independently verified.

Each batch is analyzed by an ISO/IEC 17025 accredited third-party laboratory. The report below reflects the identity, purity and full-panel specification data reported by the lab.

ILSILS LaboratoriesCertificate of Analysis≥99%Purity by HPLC

ISO 17025 Accredited8× Tested

ParameterResultMethodSpecification

Peptide Purity (HPLC)99.51%HPLC>= 95%

Net Peptide Content10.33mgHPLCReport

Identity (HPLC)ConfirmedHPLCMeets spec

AppearanceGoodVisualMeets spec

Fentanyl ScreenNot DetectedImmunoassayPass

Heavy Metals (ICP-MS)Not DetectedICP-MSPass

Sterility (PCR)No GrowthPCRPass

Endotoxin (USP <85>)0.097 EU/mLUSP <85>Reported

Third-Party Verified

Certificate of Analysis

Every lot is HPLC-tested at an ISO/IEC 17025-accredited lab. Open any batch's certificate below.

COA information

TB-500 10mg

Latest

LOT TB0002

99.51%HPLC purity · meets spec

Labeled: 10mg
Measured: 10.33mg
Identity: Confirmed
Heavy metals: Not Detected
Sterility: No Growth
Endotoxin: 0.097 EU/mL
Tested: Jul 30, 2026

8 assays passed · ISO/IEC 17025 accredited

TB-500 10mg

Selected quantity

LOT TB0001

99.75%HPLC purity · meets spec

Labeled: 10mg
Measured: 10.40mg
Identity: TB-500
Heavy metals: Not Detected
Sterility: No Growth
Endotoxin: < 0.05 EU/mL
Tested: May 29, 2026

7 assays passed · ISO/IEC 17025 accredited

TB-500 10mg

Selected quantity

LOT T0101

99.30%HPLC purity · meets spec

Labeled: 10mg
Measured: 10.88mg
Identity: Not listed
Heavy metals: Not listed
Sterility: Not listed
Endotoxin: Not listed
Tested: Feb 4, 2026

Compound Information

Technical specifications

MOLECULAR PROFILE

What Is TB-500?

Type: Endogenous peptide/synthetic analog
CAS Number: 77591-33-4
Molecular Weight: 4,963 Da
Amino Acids: 43
Active Region: Ac-SDKP (N-terminal)
Key Sequence: 17LKKTET22 (actin binding)

STORAGE REQUIREMENTS

Stability Information

Protect from lightStore desiccatedSterile handling

Lyophilized (powder)-20°Cstable long-term

Reconstituted2-8°C

AvoidRepeated freeze-thaw cycles

Product Guides & References

Verified publications and source documentation

EXPERT OPINION ON BIOLOGICAL THERAPY

Thymosin β4: a multi-functional regenerative peptide. Basic properties and clinical applications

2012DOI: 10.1517/14712598.2012.634793PMID: 22074294Goldstein AL, Hannappel E, Sosne G, Kleinman HK

View Source ANNALS OF THE NEW YORK ACADEMY OF SCIENCES

A randomized, placebo-controlled, single and multiple dose study of intravenous thymosin beta4 in healthy volunteers

2010DOI: 10.1111/j.1749-6632.2010.05474.xPMID: 20536472Ruff D, Crockford D, Girardi G, Zhang Y

View Source JOURNAL OF THE NEUROLOGICAL SCIENCES

A Dose Response Study of Thymosin β4 for the Treatment of Acute Stroke

2014DOI: 10.1016/j.jns.2014.07.006PMID: 25060418Morris DC, Cui Y, Cheung WL, Lu M, Zhang L, Zhang ZG, Chopp M

View Source JOURNAL OF INVESTIGATIVE DERMATOLOGY

Thymosin beta4 accelerates wound healing

1999DOI: 10.1046/j.1523-1747.1999.00708.xPMID: 10469335Malinda KM, Sidhu GS, Mani H, Banaudha K, Maheshwari RK, Goldstein AL, Kleinman HK

View Source INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (PMC)

Progress on the Function and Application of Thymosin β4

2021DOI: 10.3390/ijms222413136Xing Y, et al.

View Source NATURE

Thymosin beta4 activates integrin-linked kinase and promotes cardiac cell migration, survival and cardiac repair

2004DOI: 10.1038/nature03000PMID: 15565145Bock-Marquette I, Saxena A, White MD, Dimaio JM, Srivastava D

View Source CLINICAL OPHTHALMOLOGY

Thymosin beta 4 ophthalmic solution for dry eye: a randomized, placebo-controlled, Phase II clinical trial

2015DOI: 10.2147/OPTH.S80954PMID: 26056426Sosne G, Ousler GW

View Source NEUROSCIENCE

Thymosin beta4 improves functional neurological outcome in a rat model of embolic stroke

2010DOI: 10.1016/j.neuroscience.2010.05.017PMID: 20627173Morris DC, Chopp M, Zhang L, Lu M, Zhang ZG

View Source JOURNAL OF NEUROSURGERY

Treatment of traumatic brain injury with thymosin beta4 in rats

2010DOI: 10.3171/2010.4.JNS10118PMID: 20486893Xiong Y, Mahmood A, Meng Y, Zhang Y, Zhang ZG, Morris DC, Chopp M

View Source NATURE

Thymosin beta4 induces adult epicardial progenitor mobilization and neovascularization

2007DOI: 10.1038/nature05383PMID: 17108969Smart N, Risebro CA, Melville AA, Moses K, Schwartz RJ, Chien KR, Riley PR

View Source

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