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Home > Biochemical Engineering > Polypeptide > TB500 for Sale > P21 Synthetic Peptide
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P21 Synthetic Peptide

34 Inquiries

Unit Price:

$160-190/UNIT FOB

Get Latest Price
CAS No.:

885340-08-9

Grade:

Research Grade

Content:

99%

Port:

深圳

Brand:

quantaisheng Technology

Packaging:

5mg/vial 10vials/box

Price valid (until):

2026-11-30

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

Retatrutide,Tirzepatide,GHK-Cu,TB500,Nad+

  • Product Details

  • Seller Information

  • Inquiry History

  • Description

    For more information,

    please WhatsApp: +852 5742 9309
    Email:xxzi@qtsbio.com


      Product Detail  


    We provide peptide products to customers in Europe and the United States. Delivery from the source laboratory, 7-12 days to arrive, stable source of goods selection We support testing, provide real experience for customers, and adhere to ✊ honest management.

    Product Description

    P21 Peptide is a synthetic peptide supplied as a high-purity lyophilized powder. It is intended for research and laboratory applications related to peptide science and biochemical studies. The product is manufactured under strict quality control procedures, with analytical documentation available upon request.

    Shop TB-500 Peptide-Detailed Image 1 Shop TB-500 Peptide-Detailed Image 2


    Items Specifications
    Appearance Powder
    Purity 99%
    MOQ 1Box


    Customization capability


    Shop GHK-Cu Copper Peptide  High Purity Research Grade Lyophilized Powder-Detailed Image 3

    Shop Copper Peptide GHK-Cu Research Grade Peptide Powder-Detailed Image 2 Shop Copper Peptide GHK-Cu Research Grade Peptide Powder-Detailed Image 3 Shop Copper Peptide GHK-Cu Research Grade Peptide Powder-Detailed Image 4 Shop Copper Peptide GHK-Cu Research Grade Peptide Powder-Detailed Image 5


       Transport 


    Shop GHK-Cu Copper Peptide  High Purity Research Grade Lyophilized Powder-Detailed Image 8


    ——Our Professional Services  ——

    1. Respond to your inquiries within 24 working hours.

    2. Customizable design is available.

    3. Our trained professional engineers and staff can provide customers with exclusive and unique solutions.

    4. As honest sellers, we always use high-quality raw materials, advanced machinery, and skilled technicians to ensure that our products are completed with high quality and stable performance.

    Shop GHK-Cu Copper Peptide  High Purity Research Grade Lyophilized Powder-Detailed Image 6

    Our Advantages

    Premium Quality & Customer-Centric Service: We select natural raw materials, adopt green extraction technology to retain core nutritional activity, and completely avoid chemical additives, fully aligning with the mainstream health consumption trend. What’s more, our products are tailored to meet the nutritional needs of people across different age groups and physical constitutions.

    Reliable Supply Chain & Competitive Pricing: With years of industry experience, we have established a stable and efficient global supply chain, enabling bulk production and timely delivery.

    FAQ
    Q1: Can I get some samples?

    A: Yes, we can provide samples, but the customer will pay the shipping cost.Shop Copper Peptide GHK-Cu Research Grade Peptide Powder-Detailed Image 6

    Q2: How do I start the payment?

    A: Payment can be made by Bank transfer,Western,Moneygram,Bitcoin or USDT.

    Q3: How to confirm the product quality before placing an order?

    A: You can get free samples of certain products. You just need to pay the shipping cost or arrange to send the samples to us by express. You can send us your product specifications and requirements, and we will produce the products according to your requirements.

    Q5:How about the price? Can you make it cheaper?

    A:We always take the customer's benefit as the top priority. Price is negotiable under different conditions, we are assuring you to get the most competitive price.

    Q6:How Can I place an order?

    A: You could just send us inquiry to any of our sales representatives to get detailed order information, and we will explain' the detail process.

    Q7: Shipping time?

    A: We ship within 7-12 days and provide tracking number. The shipping time is different in different countries. Please consult.

    —— Why Choose Us ——

    1. High quality and competitive prices

    2. Free samples for your evaluation.

    3. Timely delivery by reputable shipping companies.

    4. Trial orders are available for testing after sample evaluation.

    5. We will notify you of all information at each stage in advance.

    6. Packaging can be customized according to the buyer's special requirements.

    Shop GHK-Cu Copper Peptide  High Purity Research Grade Lyophilized Powder-Detailed Image 8 Shop GHK-Cu Copper Peptide  High Purity Research Grade Lyophilized Powder-Detailed Image 9 Shop GHK-Cu Copper Peptide  High Purity Research Grade Lyophilized Powder-Detailed Image 10

    ECHEMI Editorial Reference
    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).

    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:

    Polypeptide

    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:

    Retatrutide,Tirzepatide,GHK-Cu,TB500,Nad+

    Location:

    Beijing

    Year of Establishment:

    2026

  • Inquiry History
    34 Inquiries
    Country Product Purchase Quantity Date Posted
    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
    United Kingdom

    TB500(Thymosin B4 Acetate)

    30 G Apr 22, 2026
    Sweden

    Retatrutide, MOTS-C, Semax, KLOW

    1 MT Apr 13, 2026
    United States

    TB-500

    1 KG Mar 20, 2026
    United States

    TB 500 5mg

    50 MT Mar 5, 2026
    Germany

    TB 500

    500 MG Jan 28, 2026
    United States

    TB-500

    100 PCS Dec 11, 2025
    United States

    TB 500

    20 PCS Nov 19, 2025
    Switzerland

    Thymosin Beta-4 TB-500 10mg

    10 20' Fcl Mar 7, 2025
    United States

    TB500

    10 MG Aug 16, 2024
    India

    TB500

    50 MG May 9, 2024
    United States

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

    30 MT Nov 6, 2023
    Canada

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

    50 MT Oct 31, 2023
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