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Home > Pharmaceutical Intermediates > Bulk Drug Intermediates > TB500 for Sale > High Purity TB-500 Freeze Dried Synthetic Peptide Powder For Lab Research
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High Purity TB-500 Freeze Dried Synthetic Peptide Powder For Lab Research

TDS 36 Inquiries

Unit Price:

$70/UNIT FOB

Get Latest Price
CAS No.:

885340-08-9

Grade:

Industrial Grade

Content:

99%

Port:

Hongkong

Brand:

Novio

Packaging:

10 bottles/box

Price valid (until):

2026-08-31

Company Type:
Trader
Location:
China
Qualification:
Main Products:

Peptides,Cosmetic Raw Materials,Pharmaceutical Intermediates

  • Product Description

  • Seller Information

  • Inquiry History

  • Description


      Product Detail  


    TB500 is a high-purity synthetic peptide fragment developed exclusively for fundamental biological laboratory research. Derived from the core active sequence of  this product features a stable seven-amino-acid molecular structure with high cross-species conservation, presenting excellent compatibility and stable biological activity in various mammalian in vitro cell experimental systems. Adopting advanced solid-phase peptide synthesis technology and professional vacuum freeze-drying craftsmanship, the final product appears as uniform pure white loose lyophilized powder. This specialized molding process effectively locks the original biological activity of peptide molecules, slows down molecular degradation during long-term storage, and maintains stable batch activity performance. Each production batch is strictly tested and verified by High Performance Liquid Chromatography (HPLC), with monomer peptide purity steadily reaching above 99%. Standardized industrial production effectively avoids impurity residue, component deviation and activity fluctuation, ensuring superior batch consistency. It fully meets the high-precision experimental demands of university laboratories, professional biological research institutions and new biomaterial development enterprises. All content described below is an objective summary of public academic literature and in vitro cell experimental observations, limited purely for scientific research reference. No descriptions of clinical performance, human practical efficacy or commercial therapeutic value are included in any context.
    In fundamental biological research, the core research value of TB500 lies in the regulatory mechanism of cellular cytoskeleton dynamics. The cytoskeleton serves as the core supporting structure inside somatic cells, responsible for maintaining cell morphology, fixing intracellular structural distribution, mediating intracellular material transportation, and conducting biological signal transduction, which constitutes the basic guarantee for normal cell life activities. Under conventional in vitro culture physiological conditions, intracellular actin maintains a dynamic reversible balance between monomeric globular actin and polymeric filamentous actin. This dynamic equilibrium directly determines cell structural stability, morphological plasticity and autonomous movement capability. A large number of controlled in vitro laboratory experiments have confirmed that TB500 can efficiently bind to intracellular actin monomers, gently intervene in the assembly and disassembly circulation of actin filaments, and continuously stabilize the dynamic balance of cytoskeleton structure. Compared with other cytoskeleton regulating laboratory reagents, TB500 delivers mild, long-lasting and stable regulatory characteristics. It will not cause structural damage or irreversible morphological distortion to normally cultured cells, making it highly suitable for long-term cell culture, continuous dynamic observation and multi-batch repeated control experiments, ensuring stable and consistent data output for long-cycle scientific research projects.
    In the field of cell behavioral research, TB500 acts as a core intervention reagent for exploring cell migration, directional movement and cell population reconstruction mechanisms. Mainstream laboratory experimental models widely applied in modern biological research, including cell scratch assays, Transwell migration detection systems and three-dimensional tissue microenvironment simulation culture models, commonly adopt TB500 as a standard experimental intervention material. Multiple in vitro experimental observations demonstrate that the addition of appropriate concentrations of TB500 into cell culture medium can effectively balance intracellular ion flux, activate downstream multi-level biological signal cascades, improve the directional movement efficiency of adherent cells and stromal cells, and optimize the migration activity and arrangement uniformity of cell populations. Relying on these stable biological characteristics, researchers can further explore the regulatory rules of somatic cell movement, analyze the reconstruction mechanism of cell populations under external environmental intervention, and study the remodeling characteristics of simulated tissue microenvironments stimulated by exogenous bioactive substances. It provides solid and reliable experimental data support for basic cell behavioral research and tissue microenvironment construction research, facilitating the implementation and data verification of various fundamental biological research topics.
    TB500 possesses high experimental application value in basic research focusing on cell stress adaptation and cell cycle stability regulation. Laboratories can artificially construct adverse in vitro culture environments including oxidative stress stimulation, mechanical external force interference and nutrient deficiency conditions to simulate cell survival states under external pressure, so as to explore the regulatory effect of TB500 on cell stress tolerance. Experimental data indicates that TB500 can participate in the regulation of multiple intracellular survival-related signaling pathways, stabilize the internal energy metabolism system of cultured cells, relieve abnormal activation of apoptotic signals induced by environmental stress, and maintain normal cell proliferation rhythm and long-term survival activity. Relevant scientific research projects mainly focus on the correlation between peptide concentration gradient and cell stress resistance, exploring the regulatory mechanism of bioactive peptides on cell models under external stimulation, and establishing standardized experimental data models for cell stress regulation. The accumulated experimental results provide sufficient theoretical and practical support for basic research on cell damage response, environmental adaptation and stress tolerance mechanisms, serving as an essential experimental material for modern fundamental biological research.
    In the segmented research field of vascular microenvironment construction and endothelial cell activity regulation, TB500 functions as a vital auxiliary laboratory reagent. Vascular endothelial cells are the core constituent cells of microcirculation tissues, and their growth status, cell adhesion performance and tubular structure formation efficiency are key observation indicators for vascular biology and microcirculation development research. In in vitro endothelial cell culture and microvascular structure simulation experiments, targeted intervention with TB500 can effectively optimize the growth state of endothelial cells, promote uniform cell adhesion and regular population arrangement, and facilitate researchers to observe the formation, development and differentiation process of microvascular-like tubular structures intuitively. At the molecular level, TB500 can moderately regulate the expression level of multiple vascular development-related signaling factors in the cellular microenvironment, participating in the construction and optimization of endothelial cell growth microenvironment. It provides innovative research ideas for basic disciplines including microvascular tissue development, endothelial cell metabolism and circulatory system cell biology. All experimental phenomena and data are limited to in vitro cell-level observation for academic analysis only, without representing any physiological optimization or tissue improvement effect.
    For basic research on immune microenvironment homeostasis and inflammatory signal regulation, TB500 provides a stable and safe experimental intervention solution. In co-culture systems of immune cells, epidermal cells and connective tissue cells, external environmental stimulation easily triggers the imbalance of inflammatory-related factors in local microenvironments, causing continuous activation of inflammatory signaling cascades and disrupting the normal growth microenvironment of cultured cells. Mass standardized in vitro experiments have verified that TB500 can effectively regulate the transcription and release of inflammation-related cytokines, improve immune factor imbalance caused by external interference, and stabilize the microenvironmental balance of cell culture systems. Different from high-strength specific inflammatory modulators, TB500 achieves gradual and mild signal regulation without causing drastic interference to the cellular immune system. It is highly suitable for in-depth exploration of the fine regulatory mechanisms of bioactive peptides on immune signaling pathways, supporting quantitative research on the activation, transmission and inhibition rules of inflammatory responses, and providing stable experimental support for immune microenvironment regulation and inflammatory mechanism basic research.
    TB500 exhibits unique experimental application advantages in basic research on soft tissue structure and extracellular matrix metabolism. The extracellular matrix is an indispensable microenvironmental component for cell growth and tissue construction, and its synthesis, secretion and remodeling efficiency directly affect the growth metabolic state and structural stability of stromal cells. In fibroblast in vitro culture experiments, targeted intervention with TB500 can effectively regulate the synthesis and secretion efficiency of collagen and various extracellular matrix proteins, intervene in the dynamic remodeling process of the peripheral cellular matrix structure, and help researchers accurately analyze the internal correlation between peptide intervention and tissue matrix metabolic changes. Meanwhile, in in vitro simulation systems for musculoskeletal tissue cells, TB500 can regulate the proliferation activity and movement characteristics of tendon cells and periosteal stromal cells. It provides innovative research directions for exploring mechanical tissue adaptation mechanisms, somatic cell mechanical signal response and biological characteristics of motor system tissues, enriching the experimental system and theoretical data of soft tissue biological research.
    As a professional laboratory-grade peptide reagent, TB500 has multiple inherent advantages adapted to scientific research scenarios. In terms of molecular characteristics, it features high cross-species conservation and stable biological activity, compatible with most mammalian in vitro cell culture systems. It presents excellent biocompatibility with no obvious toxic effects on conventional experimental cell lines, covering a wide range of experimental applications. In terms of product form, the sealed lyophilized powder structure effectively isolates air, moisture and impurity contamination, greatly reducing the risk of molecular degradation and activity attenuation. It can maintain long-term stable activity under standard low-temperature storage conditions, fully adapting to long-cycle scientific research projects and multi-batch repeated verification experiments. In terms of experimental accuracy, the single-component high-purity formula completely avoids impurity interference, effectively improving the authenticity, repeatability and accuracy of experimental data. It is widely applicable in academic paper data verification, laboratory subject research and development, new biomaterial formula screening and peptide mechanism exploration, becoming a standardized conventional peptide reagent in modern biological laboratories.
    In standardized laboratory operation scenarios, TB500 needs to be reconstituted with professional sterile solvent to prepare homogeneous and stable peptide working solution before experimental application. Researchers can configure peptide solutions with different concentration gradients according to personalized experimental designs and add them into cell culture systems for targeted intervention. All procedures including reagent reconstitution, solution transfer and cell intervention must be completed in a sterile ultra-clean laboratory environment to prevent microbial contamination from interfering with normal cell growth and compromising experimental accuracy. Sealed unused lyophilized powder should be stored in a professional low-temperature environment at -20℃, avoiding strong light exposure, high temperature conditions and repeated freeze-thaw cycles. Strict standardized storage operations maximize the retention of peptide molecular activity, ensure consistent intervention conditions for each experiment, and guarantee the parallelism and standardization of multi-batch experimental data.
    The scientific research application scope of TB500 covers multiple subdivisions of fundamental biological research, mainly including cytoskeleton dynamic mechanism research, somatic cell movement behavioral research, immune microenvironment homeostasis regulation, vascular endothelial cell metabolic biology, soft tissue matrix remodeling mechanism, and cell stress tolerance and environmental adaptation research. Researchers can design diversified experimental schemes according to specific research topics, set up blank control groups, solvent control groups and multi-gradient concentration experimental groups, systematically explore the activity variation rules of TB500 under different concentrations and intervention durations, and deeply analyze the independent action pathways and potential synergistic mechanisms of TB500 in different cell models and tissue simulation systems. It accumulates abundant experimental data and theoretical support for basic research in peptide biology, biomaterial science and cell biology.
    With the rapid development of synthetic peptide technology and biomaterial scientific research, TB500 has become a conventional core experimental reagent in major biological laboratories and peptide research institutions worldwide. Its stable molecular structure, clear biological action pathways, mild and safe regulatory activity, and low experimental risk enable wide application in basic mechanism exploration, preliminary experimental verification and new formula research and development. It is essential to clarify that all experimental data and research conclusions related to TB500 are limited to in vitro laboratory theoretical research and academic data accumulation, serving only as scientific research references. The relevant research content shall not be extended to practical application scenarios including biological intervention, physical conditioning, cosmetic production and clinical medical application. The product possesses no practical efficacy or application value beyond professional laboratory scientific research.
    Strict Compliance Disclaimer: THIS PRODUCT IS FOR PROFESSIONAL LABORATORY SCIENTIFIC RESEARCH USE ONLY. NOT FOR HUMAN , TOPICAL APPLICATION, ANIMAL TREATMENT, CLINICAL DIAGNOSIS, COMMERCIAL COSMETIC MANUFACTURING OR PHARMACEUTICAL PRODUCTION. All content on this page objectively summarizes public academic literature and in vitro experimental phenomena only, and does not constitute any functional promise or application guidance. All experimental operations must be performed by qualified professional researchers in standardized laboratory environments, complying with biological safety operation specifications and relevant industry supervision regulations.
    Items Specifications
    Purity 99
    Form Lyophilized powder
    Standard Specification 5mg per vial



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    TB 500 is a synthetically made version of TB4 that facilitates healing and recovery by helping build new blood vessels, muscle tissue fibers, blood cells, and facilitating cell migration. It acts on the muscular system and has anabolic properties. TB 500 is used primarily for race animals (horses and dogs).

    Certificates
    • High Purity TB-500 Freeze Dried Synthetic Peptide Powder For Lab Research Certificates 1 TDS

    Basic Info
    Product Name:

    TB500

    Other Name:

    TB500 fragment;L-Glutamine, N-acetyl-L-leucyl-L-lysyl-L-lysyl-L-threonyl-L-α-glutamyl-L-threonyl-;Thymosin Beta 4 Peptide Peptides Tb500 2mg/Vials 5mg/Vials;TB500 fragment acetate;TB500 Thymosin Beta 4 (TB4);Ac-LKKTETQ;Thymosin β4 TB500;TB500(Thymosin B4 AceTate) 5MG 10MG

    CAS No.:

    885340-08-9

    Molecular Formula:

    C38H68N10O14

    InChIKeys:

    ADKDNDYYIZUVCZ-HLXZCORBNA-N

    Molecular Weight:

    889.02

    EC Number:

    232-660-2

    Color/Form:

    White to Off-White

    Characteristics
    Density:

    1.281±0.06 g/cm3(Predicted)

    Boiling Point:

    1405.0±65.0 °C(Predicted)

    PKA:

    3.20±0.10(Predicted)

    Research
    Class:

    Actin-sequestering protein / 43-amino-acid peptide

    Status:

    Research compound — Not FDA approved (investigational: RGN-259 for dry eye / neurotrophic keratitis)

    Mechanism:

    A naturally occurring 43-amino-acid peptide (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) that binds G-actin (sequesters monomeric actin), preventing F-actin polymerization. Promotes cell migration, angiogenesis, wound healing, and anti-inflammatory responses via integrin-linked kinase (ILK) and HIF-1α/VEGF pathways. TB-500 is the synthetic fragment Ac-LKKTETQ (MW ~895) often sold under this CAS.

    Activity note:

    Thymosin Beta-4 is an actin-binding protein, not a receptor agonist. Functional activity is measured by actin sequestration (Kd ~0.7–1 μM) and cell migration assays, not EC₅₀.

    Source:

    Goldstein AL, et al. Vitam Horm. 2003;66:257–296. RegeneRx RGN-259 clinical program.DOI

    Clinical Development:

    NCT02974907; NCT02600429; NCT00376974

    References
    DrugBank:

    DB04951

    PubChem:

    PubChem

    UNII:

    549LM7U24W

    Disclaimer:

    Thymosin Beta-4 (TB-500) is NOT FDA-approved for human therapeutic use. RGN-259 (Tβ4 ophthalmic solution) is an investigational drug not yet approved. TB-500 sold on research-chemical marketplaces is a synthetic fragment and is not an approved medicine. This listing is for industrial and laboratory research use only. It is not medical advice, a clinical recommendation, or an approved therapy description. Always verify regulatory status, purity, and intended use with the supplier and applicable authorities before purchase or use.

  • Seller Information
    Business Type:

    Trader

    Main Products:

    Peptides,Cosmetic Raw Materials,Pharmaceutical Intermediates

    Location:

    Room 1359, Room 103, Building Jia 19, Jixiang Garden, Tongzhou District, Beijing

    Year of Establishment:

    2026

  • Inquiry History
    36 Inquiries
    Country Product Purchase Quantity Date Posted
    United States

    Factory price CAS 885340-08-9 L-Glutamine TB500

    1 KG Sep 26, 2023
    United States

    TB500 99% White powder Beta-4 CAS 885340-08-9 powder Custom peptides

    1000  Oct 30, 2023
    United States

    TB 500

    150 MG Apr 8, 2026
    United States

    China Origin TB500 2mg/5mg/10mg Lyophilized Powder for the Wound Repair Research

    1 G Mar 26, 2026
    United States

    TB500

    100 MG Feb 27, 2026
    Germany

    TB 500

    1 KG Feb 8, 2026
    Portugal

    Tb 500

    10 MT Aug 7, 2024
    France

    TB500

    1 KG Mar 27, 2024
    United States

    TB500

    1 G Jan 27, 2024
    Brazil

    TB-500

    1 G Jun 18, 2026
    Canada

    TB 500

    1 KG May 8, 2026
    United States

    TB 500

    20 G Feb 23, 2026
    Brazil

    alejandro

    300 PCS Feb 19, 2026
    United States

    TB500 10mg

    1 MT Oct 20, 2025
    United States

    Tesomorelin

    1 KG Aug 8, 2025
    Italy

    TB500

    1000 MG Dec 30, 2024
    Netherlands

    tb500

    1  Dec 16, 2024
    New Zealand

    TB500

    100 MG Jun 24, 2024
    Germany

    High Purity 99% Tb-500 5mg TB 500 Peptide TB500

    1 MT Oct 19, 2023
    United States

    High Purity 99% Tb-500 5mg TB 500 Peptide TB500

    10 MT Oct 12, 2023
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