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Frag 17-23

TDS 34 Inquiries

Unit Price:

$80/UNIT FOB

Get Latest Price
CAS No.:

885340-08-9

Grade:

Pharmaceutical Grade

Content:

99%

Port:

Guangzhou

Brand:

Guangsheng

Packaging:

10mg*10vials

Price valid (until):

2030-11-13

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

beaty prodt

  • Product Description

  • Seller Information

  • Inquiry History

  • Description


      Product Detail  


    Name:  Lynn
    Wechat:  15914422644

    Tel:+86  15914422644

    Whatsapp: +852 6252 8290

    Email:    guangsheng 5   @zgguangsheng.com

    1. Core Molecular & Physicochemical Specifications


    Item Details
    Full Name Thymosin Beta-4 Fragment 17-23; Fequesetide (INN)
    Amino Acid Sequence N-Acetyl-Leu-Lys-Lys-Thr-Glu-Thr-Gln-OH (Ac-LKKTETQ-OH)
    CAS Number 885340-08-9
    Molecular Formula C38H68N10O14
    Molecular Weight ~889.01 g/mol
    Purity Standard Research-grade: ≥98% (HPLC); Premium grade: ≥99%
    Formulation Lyophilized white powder (for research use); typically 2mg/5mg/10mg per vial
    Stability Stable at -20°C for 2–3 years; 2–8°C for 3–6 months. Avoid repeated freeze-thaw cycles.
    Reconstitution Dissolve in sterile water or normal saline; use within 24–48 hours at 2–8°C after reconstitution.



    2. Mechanism of Action


    Frag 17-23 exerts biological effects by regulating cell migration, proliferation, angiogenesis, and inflammation, primarily through the following pathways:

    1. Cell Migration & Proliferation: Promotes migration and proliferation of fibroblasts, endothelial cells, and keratinocytes, accelerating wound closure and tissue repair.
    2. Angiogenesis: Stimulates endothelial cell growth and tube formation, enhancing nutrient/oxygen delivery to damaged tissues via new blood vessel formation.
    3. Anti-Inflammatory Activity: Modulates pro-inflammatory cytokines (e.g., TNF-α, IL-6) and reduces inflammatory cell infiltration, alleviating swelling and tissue damage.
    4. Collagen Synthesis: Enhances fibroblast-derived collagen production, improving extracellular matrix (ECM) reconstruction and tissue structural integrity.
    5. ECM Remodeling: Regulates matrix metalloproteinases (MMPs) to balance ECM degradation and synthesis, preventing excessive fibrosis.



    3. Key Research Applications


    3.1 Tissue Repair & Regeneration


    • Wound Healing: Accelerates skin wound closure, reduces scar formation, and improves healing quality in preclinical models.
    • Musculoskeletal Recovery: Promotes repair of muscle strains, tendon/ligament injuries, and bone fractures by enhancing cell migration and angiogenesis.
    • Organ Protection: Preclinical studies show potential in reducing myocardial infarction size, improving renal function after injury, and mitigating liver fibrosis via anti-inflammatory and anti-fibrotic effects.

    3.2 Anti-Inflammation & Fibrosis


    • Inflammatory Diseases: Investigated for treating rheumatoid arthritis, inflammatory bowel disease (IBD), and asthma by suppressing excessive immune responses.
    • Fibrosis Prevention: Inhibits collagen deposition in organs like the heart, kidneys, and lungs, reducing fibrotic tissue formation.

    3.3 Other Research Directions


    • Neurological Repair: Explored for neuroprotective effects in stroke, spinal cord injury, and neurodegenerative disease models via angiogenesis and anti-apoptosis.
    • Sports Science: Studied for enhancing recovery from sports-related injuries (misuse in sports may violate anti-doping regulations).



    4. Production & Quality Control


    4.1 Manufacturing Process


    • Solid-Phase Peptide Synthesis (SPPS): Uses Fmoc/t-Boc chemistry to assemble the 7-amino acid sequence, with N-terminal acetylation for stability.
    • Purification: Reverse-phase high-performance liquid chromatography (RP-HPLC) to achieve ≥98% purity; lyophilization for long-term storage.

    4.2 Quality Testing


    • Purity: RP-HPLC confirms ≥98% purity; mass spectrometry (MS) verifies molecular weight.
    • Identity: Amino acid analysis and peptide mapping confirm sequence accuracy.
    • Safety: Sterility, endotoxin, and residual solvent testing to meet research standards.
    • Stability: Accelerated stability testing ensures shelf-life under recommended storage conditions.



    5. Safety & Precautions


    5.1 Preclinical Safety Profile


    • Low Toxicity: No significant acute toxicity reported in animal studies at typical research doses.
    • Immunogenicity: Low risk of antibody formation due to short sequence and natural origin.
    • Side Effects: Mild local reactions (injection site redness/pain) may occur; no systemic adverse effects observed in preclinical trials.

    5.2 Handling Guidelines


    • Research-Only Use: Not approved for human clinical use; restricted to in vitro and preclinical animal studies.
    • Storage: Keep at -20°C (long-term) or 2–8°C (short-term); avoid light and moisture.
    • Administration: Intramuscular (IM), subcutaneous (SC), or local injection in animal models; dosage varies by species and application (typically 0.1–1 mg/kg).


      About Us 


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    Certificates

    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

    Categories:

    Other Chemical Drugs

    Characteristics
    Density:

    1.281±0.06 g/cm3(Predicted)

    Boiling Point:

    1405.0±65.0 °C(Predicted)

    PKA:

    3.20±0.10(Predicted)

  • Seller Information
    Business Type:

    Trader

    Main Products:

    beaty prodt

    Location:

    Yongtai Jinli City Plaza, Baiyun District, Guangzhou City, Guangdong Province

    Payment Terms:

    TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

    Average lead Time:

    30

    Total Annual Revenue:

    Less than $1 million

    Total Employees:

    5-10

    Year of Establishment:

    2023

  • Inquiry History
    34 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
    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

    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
    United Kingdom

    TB500(Thymosin B4 Acetate)

    30 G Apr 22, 2026
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