⚠ For research purposes only — This compound is not FDA approved. All data presented is for laboratory research reference.
TB-500 research vial, studio product photo
Tissue Research Peptide

TB-500

Lyophilized research peptide · ATL-0102 · CAS 885340-08-9

Thymosin β4 fragmentTB4-FragTβ4 (17-23)

Lyophilized research peptide supplied in a sealed vial. Released against the standard eight-test panel with a lot-matched certificate published before dispatch.

Size
$94.99per unit
Quantity
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COA
We acceptVISAMCAMEXAPPLE PAY

For laboratory research use only. Not for human or veterinary use, and not for use in diagnostic procedures. Adding to cart confirms the purchase is for laboratory research by qualified professionals.

COA & testing
Release test panel for lot A2605
AppearanceMeets spec PASS
Purity≥ 95% PASS
Net peptide contentReport PASS
IdentityConforms PASS
Fentanyl screenNot detected PASS
Heavy metalsNot detected PASS
SterilityNo growth PASS
Endotoxin< 0.5 EU/mL PASS

Representative panel from ILS Laboratories. Your order ships with its own lot-specific certificate.

Shipping & storage
Ships from the U.S. in discreet packaging, with same-day dispatch on orders clearing before the midday cutoff and full tracking. Lyophilized (powder) is stored at −20 °C · desiccated · protected from light. Storage guidance is printed on the certificate. Full shipping and returns policy →
Legal disclaimer
FDA Disclaimer: The products and information provided on this website have not been evaluated by the U.S. Food and Drug Administration (FDA). These materials are not intended to diagnose, treat, cure, or prevent any disease. This product is supplied strictly for laboratory, research, or analytical use only, and is not approved for human consumption, medical use, or clinical applications. Read the full research-use policy →
Verified test results

Every batch, independently verified.

ILS
ILS LaboratoriesCertificate of Analysis
≥ 99%
Purity by HPLC
ISO 17025 accredited8× tested
Release results for lot A2605
ParameterResultMethodSpec
AppearanceGoodVisualMeets spec
Purity99.62% · PassRP-HPLC, 220 nm≥ 95%
Net peptide content10.28 mgHPLCReport
IdentityConformsESI-MSConforms
Fentanyl screenNot detectedImmunoassayNot detected
Heavy metalsNot detectedICP-MSNot detected
SterilityNo growthPCRNo growth
Endotoxin< 0.05 EU/mLLAL, USP <85>< 0.5 EU/mL
TB-500 10 mgLatest
LOT A2605
99.62%
Labeled10 mg
Measured10.28 mg
TestedJul 2026
Certificate →
TB-500 10 mg
LOT TB0004
99.40%
Labeled10 mg
Measured10.19 mg
TestedApr 2026
Certificate →
Compound information

Technical specifications.

Molecular profile

TypeSynthetic heptapeptide fragment
CAS number885340-08-9
Molecular weight889.0 g/mol
Amino acids7
SequenceLKKTETQ
FormulaC37H67N11O13
↗ PubChem database

Storage & stability

Lyophilized stableProtect from lightWater soluble
Lyophilized (powder)−20 °C · desiccated · protected from light
Reconstituted2–8 °C · use within the stability window on the certificate
HandlingReconstitute with bacteriostatic water. Storage guidance ships on each certificate.
Published research

Cited, sourced, linkable.

Annals of the New York Academy of Sciences

Thymosin β4 and tissue repair models

2012 · DOI 10.1111/j.1749-6632
View source ↗
Expert Opinion on Biological Therapy

Actin-sequestering peptides in preclinical study

2018 · DOI 10.1080/14712598
View source ↗

Not for human consumption. All research findings are sourced from peer-reviewed journals and provided for educational reference only. They must not be interpreted as medical advice or product claims. Citation list is a placeholder pending Atlas RND's curated library. See the full TB-500 literature →

$94.99TB-500 · free shipping over $100