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TB-500 — laboratory compound vial
  • Janoshik tested
  • 99.402%
  • FormLyophilized powder
  • Quantity10 mg
  • Puritythird-party HPLC-tested
Research peptide · Ref. P03

TB-500 - 10 mg

Updated Ouralus research desk

Synthetic peptide · 10 mg vial

Thymosin β4 (TB4), the full-length N-acetylated 43-residue peptide of the beta-thymosin family, as named on the Janoshik report for this listing. Characterized in the literature as a G-actin–sequestering peptide.

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$45$27$45−40%Single vial · 10 mg

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Buy one, get one free 10 mg

TB-500 vial 1 of 2
TB-500 vial 2 of 2FREE

$45

  • Same-day dispatch on orders before 11am CentralBusiness days
  • Typically arrives 2–5 business days after dispatchCarrier estimate, not a guaranteed date
  • Shipment protection includedNo additional charge at checkout

For laboratory research use only. Not for human consumption.

  • 99.402% assayed purity
  • Third-party reportJanoshik task #92009
  • View certificate ↓Full report + verify key
Characterization

What it is, stated plainly.

What it is

Thymosin β4 (TB4): the full-length, N-acetylated 43-residue peptide of the beta-thymosin family, characterized in the literature as a G-actin–sequestering peptide. The Janoshik report for this listing names the sample "TB-500 (TB4)" and states its measured content and purity; it prints no separate identity result. Published work sits in the actin-binding and structural-biology literature.

How a lot is verified

Purity assayed by third-party and net content (mg per vial) measured by the lab, with a certificate of analysis published where a report exists.

Handling & storage

Supplied as a lyophilized powder. Store at −20°C, desiccated and protected from light. Handled per the receiving laboratory's procedures. Not for human consumption.

Specifications

TB-500 10 mg specifications.

Form
Lyophilized powder
Quantity
10 mg
Purity
99.402% (third-party HPLC)
77591-33-4
Molecular formula
C212H350N56O78S
Molecular weight
4963 g/mol
Storage
−20°C, desiccated

A number or molecular formula is shown only where it has been verified. Where one is not shown, it has not been, and none is implied.

Identity

Identifiers and handling.

77591-33-4
Molecular formula
C212H350N56O78S
Molar mass
4963 g/mol
Sequence
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
PubChem CID
16132341
UNII
2D5MRE3SSY

Also known asTB-500 · TB500 · TB4 · Thymosin beta-4 · Thymosin β4 · Timbetasin

Handling & stability

Lyophilized
−20°C · 24 months (sealed, desiccated)

For laboratory research use only. Not for human consumption.

How we verify TB-500

The certificate, before the claim.

Janoshik reports published per lot. Verify any report with its key.

Lab-fee guarantee: terms and floors →

  • Certificate where testedShows the batch number and test date
  • A verify key on every certificateCheck it on the lab's website
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  • $10.60 shippingFree on orders of $50+ or with VERIFIED20 · Order by 11am Central, ships same day
View the full certificate of analysis for TB-500 10 mg →

TB-500 specificationLiterature indexBatch test resultsTB-500 10 mg on the testing page

For laboratory research use only. Not for human consumption. See our full standard →

Verified buyer reviews

What buyers said about TB-500.

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Questions

Answered straight.

What is TB-500?

On this listing, TB-500 is thymosin beta-4 (TB4): the full-length, N-acetylated 43-residue peptide, CAS 77591-33-4, as named on its Janoshik report. Ouralus supplies it as a lyophilized powder for laboratory research use only.

Is TB-500 the same as thymosin beta-4?

The name is used in the market both for full-length thymosin beta-4 and for a seven-residue fragment of it. The Janoshik report for this listing names the sample "TB-500 (TB4)", meaning full-length thymosin beta-4. The report prints content and purity, not a separate identity result.

Who can order?

These materials are supplied strictly for laboratory and research use, to purchasers of legal age. They are not supplements, drugs, or foods, and are not for human or animal consumption.

Is TB-500 legal to buy?

TB-500 is supplied strictly as a research chemical for laboratory research use only — it is not a drug, supplement, or food, and not for human or animal consumption. It ships to purchasers of legal age for research use. Buyers are responsible for compliance with the laws that apply to research materials in their own jurisdiction.

Is a certificate of analysis provided with TB-500?

Yes — the current lot of TB-500 has a third-party HPLC certificate of analysis from Janoshik, independently verifiable by lot (verify key PDXV8UJEL1G4). The current lot assayed 99.402%. We publish the certificate before making any purity claim; this is a research chemical for laboratory use only.

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TB-500$45
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