RESEARCH USE ONLY: All products are intended for research use only as defined by the FDA. Not for use in diagnostic procedures, human use, or veterinary use.
Peptides
TB-500 is a synthetic seven residue peptide (Ac-LKKTETQ) matching the actin binding region, residues 17 to 23, of thymosin beta-4 (Tβ4). It is a fragment, not the full length 43 residue Tβ4 protein. Molecular formula C38H68N10O14, molecular weight 889.0 g/mol (PubChem CID 62707662). Supplied as a lyophilized powder in 2mg and 5mg vials with ≥98% purity (HPLC verified). For in-vitro research use only.
Products are of the utmost purity and concentration… Shipping is VERY fast. Customer service is professional and very responsive.
| Weight | 0.008125 lbs |
|---|---|
| Size | 2mg, 5mg |
TB-500 is a synthetic seven amino acid peptide, Ac-LKKTETQ, that matches the actin binding region (residues 17 to 23) of thymosin beta-4. It is a fragment, not the full 43 amino acid thymosin beta-4 protein.
Key Molecular Specifications:
Loti Labs supplies research-grade TB-500 with batch-level third-party testing. Each order includes a certificate of analysis.
Product Features:
The company’s quality control process ensures each batch meets research standard, providing scientists with reliable material to study TB 500 on other experimental applications. This consistency is important for researchers who need reproducible results across multiple experimental sessions.
The company states that TB-500 is not a substance for human or veterinary use and must not be misbranded or misused outside of research context.
Research Use:
Loti Labs has efficient shipping protocol to support researchers’ project timeline. Orders placed before 1pm EST Monday to Friday ship same day, orders placed after 1pm EST or weekend ship next business day. This allows researchers to plan their experimental timeline.
The company offers 30 day satisfaction guarantee on unopened products, researchers can return unused items for full refund. This policy allows risk free purchasing for research labs managing budget and project requirements.
Every batch of TB 500 is tested by third party using HPLC analysis, the gold standard for peptide purity verification. This testing ensures each vial has > 98% purity so researchers can trust their experimental materials.
Quality control includes:
These quality assurance protocols allow researchers to trust their results and have consistency across studies involving TB 500. The third party verification adds an extra layer of credibility to research and support publication requirements for peer reviewed journals.
| Weight | 0.0099 lbs |
| Appearance | Lyophilized Powder |
| Peptide Sequence | Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln-OH |
| Solubility | Soluble in water |
| Source | Solid-phase peptide synthesis |
| Molar Mass | 889.0 g/mol |
| CAS Number | 885340-08-9 |
| PubChem | CID 62707662 |
| Molecular Formula | C38H68N10O14 |
| MG | 2mg and 5mg |
| Terms | This product is sold for research/laboratory usage only. No other uses are permited. |
| Compound | CAS number | Molecular formula | Molecular weight |
|---|---|---|---|
| TB-500 (Tβ4 fragment) | 885340-08-9 | C38H68N10O14 | 889.0 g/mol |
Identity data on this page was checked against the references above during an independent scientific review in October 2026.
⚠️ Disclaimer: THIS PRODUCT, SOLD BY LOTI LABS, IS INTENDED AS A RESEARCH CHEMICAL ONLY.
This designation allows the use of this chemical strictly for in-vitro laboratory testing and experimentation. No other uses or purposes are permitted. All information provided on this website is for educational purposes and has been compiled from multiple sources believed to be accurate. Human or animal use of this product is strictly forbidden by law. This product is not a drug, food or cosmetic and may not be misbranded, mislabeled or misused as such. Anyone not adhering to these terms will be blacklisted and forbidden from purchasing.
Every batch tested. No fillers. No guesswork. At Loti Labs, we’re more than just a supplier — we’re your partner in achieving breakthrough results. With 14+ years of proven expertise, we deliver a boutique experience built on premium quality, fast fulfillment, and client-first service.
Each product is thoroughly tested and verified to meet the highest industry standards, ensuring accuracy and reliability for your research.
Our experienced team is here to assist with inquiries, and special requests, providing responsive, human support at every step.
Orders placed before cutoff times are processed with urgency and shipped rapidly, so your research never slows down.
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