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Thymosin β4 Peptide · Research Peptide

TB-500

Name: TB-500
Brand: Peptides Optimized
SKU: tb-500
Availability: InStock

Thymosin Beta-4Tβ4TB4

TB-500 is a synthetic 43-amino-acid peptide with an N-terminally acetylated serine residue, corresponding to the sequence of thymosin beta-4. It is supplied lyophilized for laboratory research, third-party tested to 99%+ HPLC purity, for research use only — not for human or veterinary use.

Supplied lyophilized — requires BAC water

99%+ HPLC purityThird-party testedEndotoxin testedShips from USA

Size

View Certificate of Analysis

Qty1

From$29.99$42.84Save 30%

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Lab Verified

Certificate of Analysis

Review the published certificate for each listed strength, including its batch number and reported purity, potency, identity, heavy metals, sterility and endotoxin results.

2verified batches

LatestPass7× Tested

99.43%

Purity

Passed full QC panel

Variant: TB-500 5 mg
Batch #: BT5-260810
Labeled: 5 mg
Actual: 5.14 mg
Tested: Jul 20, 2026

Full QC Panel7× tested

Purity · HPLC · USP <621>99.43%

Net Peptide · USP <621>5.14 mg

Identity · LC-MSTB-500

FTIR · USP <197A>Conforms

Heavy Metals · ICP-MS <233>Not Detected

Sterility · USP <71>No Growth

Endotoxin · USP <85>0.11 EU/vial

View full COA

Genesis Biolabs · COA #1791642 · verify

Pass7× Tested

99.2%

Purity

Passed full QC panel

Variant: TB-500 5 mg
Batch #: BT5-260510
Labeled: 5 mg
Actual: 5.12 mg
Tested: May 10, 2026

Full QC Panel7× tested

Purity · HPLC · USP <621>99.2%

Net Peptide · USP <621>5.12 mg

Identity · LC-MSTB-500

FTIR · USP <197A>Conforms

Heavy Metals · ICP-MS <233>Not Detected

Sterility · USP <71>No Growth

Endotoxin · USP <85>0.12 EU/vial

View full COA

Genesis Biolabs · COA #1550609 · verify

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Compound Information

Technical specifications

Molecular Profile

What is TB-500?

Type: Synthetic peptide
CAS Number: 77591-33-4
Molecular Weight: 4963.55 g/mol
Amino Acids: 43
Sequence: Ac-SDKPDMAEIEKFDKSKLKKTETQEKNPLPSKETIEQEKQAGES
Formula

Important Research Notice

This product is for research and laboratory use only. It is not approved for human or veterinary therapeutic use.
Storage, handling, and disposal must comply with applicable local, state, and federal regulations.
Researchers are responsible for verifying intended use and ensuring compliance with their institutional protocols.

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TB-500

Certificate of Analysis

Frequently Researched Together

Compound Information

What is TB-500?

Important Research Notice

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Stability Information

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Research Protocol