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For Research Use Only. Not for human use.

TB-500 (Thymosin Beta-4) Delayed Release Capsules

TB-500 (Thymosin Beta-4) is a synthetic peptide formulation integrated into a delayed-release matrix for specialized laboratory applications. It is frequently utilized in in-vitro assays to evaluate peptide stability and cellular motility under controlled dissolution conditions. This product is strictly designated for research and development purposes and is not intended for human use, diagnostics, therapeutics, or veterinary application.

This product is prepared for LABORATORY RESEARCH 
USE ONLY and may not be used for other purposes.

Chemical Structure and Properties

TB-500 corresponds to the active domain of Thymosin Beta-4, specifically containing the central actin-binding sequence (Leu-Lys-Lys-Thr-Glu-Thr-Gln). While its molecular formula can vary slightly based on the specific fragment length utilized, the full 43-amino acid sequence has a molecular weight of approximately 4963.5 g/mol. The peptide features an acetylated N-terminus, a structural modification that significantly enhances its baseline stability and lipophilicity. In laboratory environments, this structural profile allows for efficient diffusion in aqueous buffers and simulated cellular media while protecting against premature hydrolytic degradation. Our preparations achieve purity levels exceeding 98% by HPLC, with consistent batch-to-batch reproducibility that we document transparently via Certificates of Analysis, ensuring you have reliable materials at hand.

Introduction to TB-500

At our company, we're all about making peptide science approachable and reliable for researchers like you. TB-500 is a synthetic analog of the naturally occurring peptide Thymosin Beta-4. In laboratory environments, it is recognized for its role as a key regulator of actin polymerization. This specific research formulation is integrated into a delayed-release matrix, providing a precise delivery mechanism for studying cellular cytoskeletal dynamics and motility in controlled in-vitro assays.

In mechanistic terms, researchers study TB-500 to observe its ability to sequester G-actin (globular actin). By regulating the availability of actin monomers in isolated cell cultures, researchers can evaluate how it influences the formation of actin filaments—the structural components cells use for movement. Mechanistically, it is frequently utilized in in-vitro endothelial cell differentiation models to observe its influence on cellular migration pathways—we're happy to walk through the data behind these pathways, offering straightforward interpretations grounded in the science.

Experimental Delivery Matrix (HPMC Capsules)

This formulation is provided within specialized capsules designed for simulated dissolution testing and controlled release assays:

  • Function: The enclosures are designed to be acid-resistant, remaining structurally stable in low-pH laboratory environments (e.g., Simulated Gastric Fluid assays).
  • Purpose: Engineered for timed-release studies, they protect the core peptide structure until introduced to a neutral or elevated pH environment.
  • Targeted Dissolution: The pH-sensitive coating remains intact under highly acidic conditions, initiating breakdown and solute release only when transitioned to neutral pH buffers.
  • Material: Constructed from Hydroxypropyl Methylcellulose (HPMC), a plant-derived polymer, providing a standardized, non-animal-derived casing for in-vitro dissolution assays.

For Research Use Only. Not for human use. All products offered are intended strictly for laboratory research purposes only. They are NOT for human or animal consumption, nor are they to be used as drugs, diagnostics, therapeutics, food additives, cosmetics, or household chemicals.

Laboratory Applications and Storage

TB-500’s role as a driver of cell migration makes it a subject of significant interest for in-vitro cellular assays and structural biology. In isolated endothelial and fibroblast models, researchers observe its influence on cellular motility and extracellular matrix remodeling kinetics. Beyond structural assays, it is utilized to study angiogenic pathways by evaluating vascular endothelial cell proliferation in controlled environments. Its ability to modulate actin dynamics makes it a versatile tool for evaluating cellular responses to simulated physiological stress. We appreciate the nuance in these biochemical actions and are here to provide insights into how this peptide supports in-vitro cellular mobility, keeping things logical and approachable.

For optimal stability, store TB-500 capsules in a cool, dry environment, preferably at 4°C to -20°C, keeping the container tightly sealed to shield from humidity and light. If extracting contents for solution-based assays, the peptide is highly water-soluble; reconstitute in sterile laboratory buffers or standard cell culture media with gentle mixing. Backed by our stability validations, these steps help maintain structural integrity prior to experimental deployment—reach out if you have questions regarding handling or storage.

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For Research Use Only. Not for human use.
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  1. RESEARCH USE ONLY: All products offered on this website are intended strictly for laboratory research purposes only. They are NOT for human or animal consumption, nor are they to be used as drugs, food additives, cosmetics, or household chemicals.

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