 Home > Biochemical Engineering > Biochemical Reagents > TB500 for Sale > High-purity, research-grade lyophilized peptide powder (CAS 885340-08-9); raw material for laboratory research.

High-purity, research-grade lyophilized peptide powder (CAS 885340-08-9); raw material for laboratory research. buy - large image1

High-purity, research-grade lyophilized peptide powder (CAS 885340-08-9); raw material for laboratory research. buy - image1

High-purity, research-grade lyophilized peptide powder (CAS 885340-08-9); raw material for laboratory research. buy - image2

High-purity, research-grade lyophilized peptide powder (CAS 885340-08-9); raw material for laboratory research. buy - image3

High-purity, research-grade lyophilized peptide powder (CAS 885340-08-9); raw material for laboratory research. buy - image4

High-purity, research-grade lyophilized peptide powder (CAS 885340-08-9); raw material for laboratory research.

Name: High-purity, research-grade lyophilized peptide powder (CAS 885340-08-9); raw material for laboratory research.
Brand: Leshenghe
SKU: pr2609034227
Price: 20 USD
Availability: InStock

TDS 35 Inquiries

Unit Price:

$20/UNIT FOB

Get Latest Price 

CAS No.:

885340-08-9

Grade:

Reagent Grade

Content:

99.9%

Port:

guangzhou

Brand:

Leshenghe

Packaging:

10vials/box 10 mg*10vials

Price valid (until):

2026-10-03

Contact Supplier

 Chat Now

Beijing Peptide Biotechnology Group

Company Type:

Trader

Location:

China

Qualification:

Main Products:

peptides,Retatrutide,Tirzepatide,Cosmetic peptide,API polypeptide,Pharmaceutical Peptide

 Visit Store

Product Description
Seller Information
Inquiry History

Description
Name: Elena

WhatsApp: +852 9017 4689

Email: 01marcusreed01@gmail.com

Welcome global customers for inquiries, samples and long-term cooperation!

🔬 Research Applications (For In Vitro / Preclinical Use Only)

TB-500 (CAS 885340-08-9), a high-purity research-grade peptide, is primarily used in the following life science research areas:

Cell Motility & Cytoskeleton Regulation

Used for in vitro studies of cell migration, proliferation, and actin cytoskeleton regulation. Supports scratch assays, Transwell migration assays, and helps elucidate pathways involved in cell polarity formation and intracellular signal transduction.

Tissue Repair & Regeneration Mechanisms

Suitable for preclinical models such as skin wound healing, muscle injury repair, and tendon/ligament remodeling. It enables research on the regulatory effects of TB-500 on epithelial cell regeneration, angiogenesis, and muscle fiber regeneration, serving as a reliable tool peptide for tissue regeneration studies.

Anti-Inflammatory & Immunomodulatory Research

Applicable to in vitro inflammatory cell models (e.g., macrophages, neutrophils) to detect changes in pro-inflammatory cytokine expression. It supports exploration of its inhibitory effects on inflammatory signaling pathways such as NF-κB and MAPK, facilitating research on chronic inflammation-related mechanisms.

Angiogenesis & Cytoprotective Studies

Ideal for in vitro endothelial cell tube formation assays to evaluate pro-angiogenic activity. It can also be used in preclinical models of ischemia-reperfusion injury to investigate potential mechanisms of tissue protection and functional recovery.

Drug Screening & Target Validation

Why Choose Us

Customs Clearance: No issues! We guarantee the smooth delivery of your order.
Convenient Payment: We accept Bitcoin, USDT, and bank transfers.

High Quality: Our products are of superior quality, and we also accept small-batch trial orders.

Available Shipping Methods:

FedEx / UPS Express :

Stable transit, our primary shipping option.
Transit time: 3–7 working days to Europe ,7–14 working days for other regions.

vantages: Full tracking online, strong customs clearance support, priority sorting. Ideal for sample and small-medium bulk orders.

Package: Lyophilized peptides are packed with insulated foam box and ice packs to maintain low temperature during transit and prevent peptide inactivation.

DHL Express:

Suitable for certain countries with better clearance performance, transit time 7–10 working days with real-time tracking.
For large-volume orders, air freight or sea freight is available with competitive price, delivery term negotiable.

Lead time: Goods will be arranged for shipment within 1–3 working days after payment confirmed.
Tracking number: Tracking ID will be provided once dispatched, you can monitor shipment status on official courier website.

Packing Details: All peptide vials are placed in shockproof plastic inner boxes. Outer insulated foam box with ice packs for cold chain protection, reinforced carton outside to avoid breakage, moisture and high-temperature degradation during transportation.

Our factory
As a direct peptide factory in China, we have our own R&D team and large-scale production base.

We implement strict quality control from raw materials to finished products, with each batch tested and traceable.

We have rich experience in global export, safe and discreet packaging, strong customs clearance ability.

We offer competitive factory price, fast delivery and reliable after-sales support.
Items Specifications

Product Name TB-500

CAS No. 885340-08-9

Purity ≥99.0%
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).
Certificates
- 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

Categories:
Biochemical Reagents

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

Literature:
PubMed: Goldstein AL et al. (2003) — Review; ClinicalTrials.gov: ARISE-1 (NCT02974907)

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,Retatrutide,Tirzepatide,Cosmetic peptide,API polypeptide,Pharmaceutical Peptide

Location:
Room 103, Building A19, Jixiangyuan, Tongzhou District, Beijing

Payment Terms:
D/P,TT against B/L draft before shipment

Average lead Time:
10

Total Annual Revenue:
$10 million-$25 million

Total Employees:
51-100

Year of Establishment:
2026

We are a certified manufacturer and supplier dedicated to the production and sale of cosmetic raw materials and peptides. We specialize in peptide products and are committed to delivering high quality.
"Rapid and secure delivery" is a key strength of ours. Positive customer feedback and repeat orders form the cornerstone of our mutual growth with clients.
We consistently uphold the principle of "Quality First, Customer Foremost." Our peptide products feature superior quality and advanced technology. In addition to excellent shipping services, we provide worry-free after-sales support. With over a decade of experience in the peptide industry, we operate with unwavering integrity.
We offer hundreds of peptide products to meet a wide range of customer needs. Our business spans the United States, Europe, Australia, and the rest of the world, where we maintain long-term, stable partnerships.

Inquiry History

35 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

Go to Page

Post an enquiry for this product

More Choices Find All Products for Sale 

Product Name	Grade / Content	Price	Supplier Name	Details
TB500(Thymosin B4 Acetate) \| US Warehouse \| Cosmetic-grade Peptide \| 99% Purity	Pharmaceutical Grade/99		NBHH Technology for Pharmaceutical Inte	Inquiry
High quality and high purityFactory supply low price Thymosin Beta-4 TB-500 5mg 10mg CAS 885340-08-9	Pharmaceutical Grade/99		Haikou Mingheng Technology Co., Ltd.	Inquiry
TB500 peptide raw powder material raw powder Wholesale	Pharmaceutical Grade/99		Jinzhou Hongbai Technology Co., Ltd.	Inquiry
TB500 build muscles Top Quality Peptide Lyophilized Fast delivery 99% purity	Pharmaceutical Grade/99.9	$10-13/G FOB	Tianjin Aobos Cosmetics Co., Ltd.	Inquiry
Direct Manufacturer / Factory-Direct SoTB500(Thymosin B4 Acetate) \| US Warehouse \| Cosmetic Peptide \| 99% Purity \| 5mg 10mg Vials \| Lyophilized Powder	Pharmaceutical Grade/99	$10/UNIT FOB	Yiwu Huangxin Trading Co., Ltd.	Inquiry

Items	Specifications
Product Name	TB-500
CAS No.	885340-08-9
Purity	≥99.0%

High-purity, research-grade lyophilized peptide powder (CAS 885340-08-9); raw material for laboratory research.

Product Description

Seller Information

Inquiry History

🔬 Research Applications (For In Vitro / Preclinical Use Only)

Why Choose Us

Available Shipping Methods:

Packing Details: All peptide vials are placed in shockproof plastic inner boxes. Outer insulated foam box with ice packs for cold chain protection, reinforced carton outside to avoid breakage, moisture and high-temperature degradation during transportation.

More Choices Find All Products for Sale 

Related Searches