Thymosin Beta-4 Fragment · US Supplier
TB-500 For Sale
TB-500 for sale directly from the US lab that synthesises it. 5 mg and 10 mg vials, ≥99% HPLC purity, batch-matched third-party COA, same-day shipping from New York.
About This Compound
TB-500 is the synthetic acetylated fragment of Thymosin Beta-4 spanning the actin-binding domain. It is studied for actin sequestration, cell migration and angiogenesis in preclinical tissue-repair models. Every vial is synthesised by Fmoc solid-phase peptide synthesis at our Manhattan facility and purified by preparative reverse-phase HPLC — no repackaged import, no reseller layer.
Each lot is independently verified before release: purity by reverse-phase HPLC, identity by ESI mass spectrometry within ±0.5 Da of theoretical mass, and endotoxin below 0.5 EU/mg by LAL assay. Recent TB-500 batches have measured 99.8%+ — the batch table below is read live from our certificate records, so it shows the real numbers rather than a claim.
Researchers frequently pair TB-500 with BPC-157; we supply that combination as a pre-blended vial as well, which works out cheaper than two separate vials. Both ship lyophilised in amber borosilicate under nitrogen, in plain unbranded outer packaging.
TB-500 is supplied strictly as a research chemical for laboratory use. It is not a drug, not a supplement, and not intended for human or veterinary use.
Quality Benchmarks
Every batch shipped from BioInfinity is verified against these specifications by an independent third-party lab before release.
- Purity
- ≥ 99% by reverse-phase HPLC
- Identity
- Confirmed by ESI-MS mass spectrometry
- Endotoxin
- < 0.5 EU/mg (LAL assay)
- Third-Party COA
- Verum Analytics (Switzerland) — batch-matched
- Origin
- Solid-phase peptide synthesis (SPPS), Fmoc chemistry
- Presentation
- Lyophilized white powder, septum-sealed vial
- Storage
- Refrigerate 2–8 °C; long-term −20 °C, protect from light
- Batch Traceability
- Every vial tied to a lot number & verification code
Current pricing and stock
Batch COA and measured purity
| Batch | Measured purity | Method | Lab | |
|---|---|---|---|---|
| BIL-BATCH-01-2602 | 99.85% | HPLC-UV/MS | Verum Analytics · 2026-03-02 | View COA |
Every vial ships with the certificate for the batch it came from. The full history is public in the COA library — purity by reverse-phase HPLC, identity by ESI-MS, endotoxin by LAL assay.
Frequently Asked Questions
How much does TB-500 cost?▾
TB-500 is priced per vial by size — current pricing for the 5 mg and 10 mg vials is listed live on this page. Professional accounts receive tiered volume discounts automatically at checkout.
What purity is your TB-500?▾
Every TB-500 batch tests ≥99% by reverse-phase HPLC, with recent lots measuring 99.8% or better. The exact figure for the batch you receive appears on its certificate of analysis, published before it ships.
Is TB-500 the same as Thymosin Beta-4?▾
Not quite. Thymosin Beta-4 is the full 43-amino-acid protein; TB-500 is the synthetic acetylated fragment containing the actin-binding sequence, which is why it is the form used in most preclinical work.
Do you sell TB-500 and BPC-157 together?▾
Yes — we supply a pre-blended BPC-157 & TB-500 vial in 10 mg (5/5) and 20 mg (10/10) formats, with COAs covering both peptides in the blend.
How fast does TB-500 ship?▾
Same business day when ordered before 3 PM ET, shipped from New York with tracking emailed automatically. Most US destinations arrive within 2–3 days.
How should TB-500 be stored?▾
Lyophilised TB-500 is stable at -20°C for long-term storage and tolerates ambient shipping. After reconstitution with bacteriostatic water, store at 2–8°C and protect from light.
Related Research Peptides
Frequently sourced together by research groups.
Ready to Order?
Same-day shipping from our Manhattan facility. Third-party Certificate of Analysis included with every shipment.
All products sold by BioInfinity are supplied strictly for in-vitro laboratory research use only. They are not FDA-approved for any therapeutic indication and are not intended for human or veterinary use.