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Thymosin Beta 4 (TB-500) 5mg

TB-500 5mg is a 43-residue actin-sequestering peptide derived from the central active domain of thymosin beta-4 (Tβ4), a highly conserved 4.9 kDa intracellular protein (CAS 77591-33-4). Molecular formula C₂₁₂H₃₅₀N₅₆O₇₈S, molecular weight 4,963 g/mol. Supplied as a 5mg lyophilized powder with ≥98% purity (HPLC verified). For in-vitro research use only.

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Additional information

Weight 0.008125 lbs

⚠️ 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.

Buy TB 500 5mg at Loti Labs: Research Peptide for Scientific Applications

Molecular Structure of TB 500

TB 500 is a synthetic version of thymosin beta-4 with a sequence of 43 amino acids.

Key Molecular Specifications:

  • Amino Sequence: 43 amino acids with the LKKTETQ sequence
  • Molecular Formula: C212H350N56O78S
  • Molecular Weight: 4963 g/mol
  • PubChem CID: 16132042
  • CAS Number: 77591-33-4

Storage and Safety Protocols

Proper storage and handling of TB 500 is crucial to maintain the compound’s integrity and get consistent research results. The lyophilized powder form requires specific environmental condition to preserve the molecule structure and research activity.

Storage Requirements:

  • Store powder at -20°C for maximum stability
  • Once reconstituted, refrigerate at 2-8°C
  • Protect from light exposure at all times
  • Avoid repeated freeze-thaw cycles
  • Use within recommended timeframe after reconstitution

Researchers must follow strict sterile technique during reconstitution and handling to prevent contamination and maintain the validity of the results. Proper safety protocols should include laboratory ventilation, personal protective equipment and institutional guidelines for handling research chemicals. These measures ensure researcher safety and experimental integrity when working with TB 500 in lab.

Why Buy from Loti Labs

Loti Labs offers research grade TB 500 5mg vials for scientific use. The company’s commitment to quality ensures researchers get consistent, high purity compounds for rigorous experimental protocols. Each purchase includes documentation to support research compliance and experimental validity.

Product Features:

  • Research grade purity > 98%
  • Competitive pricing $45-68 per vial
  • HPLC testing certificates
  • Chemical Safety Data Sheets
  • Vacuum sealed vials for optimal stability
  • Long shelf life for long term storage

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.

Compliance and Research Use Guidelines

All products from Loti Labs are for research use only and comply with research chemicals regulations. This designation allows use only for in-vitro laboratory testing and experimentation within controlled research environment. 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:

  • For laboratory research only
  • Not for human or veterinary use
  • Follow institutional research protocols
  • Maintain proper documentation and handling procedures

Shipping and Customer Support

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.

Third Party Testing and Quality Assurance

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 and correct molecular structure so researchers can trust their experimental materials.

Quality control includes:

  • Independent lab testing
  • Batch specific certificates of analysis
  • Molecular structure verification
  • Purity testing > 98%
  • Consistency across batches

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.

For more information on Thymosin Beta-4 TB-500 peptide please visit Wikipedia.


Weight 0.0099 lbs
Appearance Lyophilized Powder
Peptide 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
Solubility 100 µg/mL sterile diluent
Source Biosynthetic production
Stability Lyophilized protein is to be stored at -20°C.
It is recommended to divide the remaining reconstituted peptide into multiple vials
so as to avoid a cycle of freezing and thawing. Reconstituted protein can be stored at 4°C.
Molar Mass 4963.44 g/mol
Options container container2
CAS Number 77591-33-4
PubChem CID 16132341
Molecular Formula C212H350N56O78S
MG 5mg
Terms This product is sold for research/laboratory usage only. No other uses are permited.
TB-500 5mg
Thymosin Beta 4 (TB-500) 5mg

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