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TB-500 BT2 Discount price Manufacturer Supply Superior quality

17 Inquiries

Unit Price:

$20-25/G FOB

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CAS No.:

885340-08-9

Grade:

Pharmaceutical Grade

Content:

99%

Port:

GUANGHZOU

Brand:

Packaging:

20mg/vial

Price valid (until):

2027-12-30

Contact Supplier

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Ti.ZhenBo

Company Type:

Trader

Location:

China

Qualification:

Main Products:

Retatrutide,Acetic acid water,Tirzepatide

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Product Description
Seller Information
Inquiry History

Description
Sales manager :Beibei

Whatsapp:+852 4742 7839

Email:zhenbo202603@163.com

https://airmastercool.com/
Company Introduction

Qingdao Fengxi Biotechnology Co., Ltd. specializes in the production of diverse peptide products and chemical raw materials.

Backed by a professional R&D team and a dependable, high-efficiency logistics workforce, we guarantee the safe and timely delivery of premium products. Our client base spans across multiple regions worldwide, including Europe, Japan, South Korea, India and other areas. The majority of our mainstream products are kept in stock for immediate dispatch. Kindly inform us of your required quantities, and we will quote you our most favorable prices. Feel free to reach out if you need further details.

Our full lineup of peptides finds extensive applications in life science research, pharmaceutical development, cosmetics, anti-aging treatments and functional health products. We deliver peptides featuring stable quality and competitive pricing, which have earned consistent positive reviews from purchasers across the globe. We welcome trustworthy buyers worldwide to get in touch for peptide cooperation.

1. Outstanding Product Quality

Quality is the core pillar of our operations. All peptides are manufactured via solid-phase peptide synthesis (SPPS), followed by HPLC purification and mass spectrometry (MS) verification.

A full Certificate of Analysis (COA) is provided for every batch, covering core test indicators:

HPLC-tested purity

Molecular weight identified by MS

Moisture content

Residual solvent content

Microbial limits (where applicable)

For customers with stringent compliance requirements, we can also provide third-party inspection reports, LAL endotoxin test data and stability assessment documents upon request.

2. Custom Solutions & R&D Services

Equipped with a seasoned R&D team, we provide flexible custom synthesis services. We are capable of developing brand-new peptide sequences, producing cosmetic-grade peptides, and creating modified molecules such as PEGylated and acetylated peptides, ensuring high-standard outputs and on-time delivery.

Our service scope includes:

Custom peptide synthesis (from milligram to kilogram scale)

Peptide modification and labeling

Small molecule compound synthesis

Project-oriented research and production scale-up

We maintain close communication with clients throughout the whole development process, to secure technical viability, swift lead times and reasonable cost control.

3. Diverse Product Range

We offer a complete and continuously updated product catalog:

Peptides: GLP-1 analogs (Semaglutide, Tirzepatide, Retatrutide, etc.), cosmetic peptides (Acetyl Hexapeptide-8, Matrixyl, etc.), anti-aging peptides and research-use peptides.

Small molecules: Nootropics, NAD+ supplements (NMN, NR, NADH, etc.) and chemical intermediates.

Biochemical products: Amino acid derivatives, enzyme cofactors and custom laboratory reagents.

We continuously roll out new items to keep pace with market demands. For clients with long-term or seasonal procurement needs, we also accept bulk stock reservations.
1.:We offer various types of peptides，about the peptides，we can provide the good quality，the good price.
Customers who have ordered our products（peptides）have had very good feedback.
World wide relaible buyers can contact us about the peptides.

2:Company advantages

Are you from these countries?United States, Canada, Spain, Portugal, Australia, Brazil, France, Netherlands, United Kingdom, Bulgaria, Norway, and more.
Good News! We guarantee smooth customs clearance in key destinations, including Germany and Finland, with no issues at all. Your packages will be securely delivered within 5-15 days.

Why Choose Us:
Fast Delivery: We ship your order quickly using DHL, FedEx, and other options. Most orders arrive in 5-15 days.
Customs Clearance: No customs problems! We make sure your order is delivered smoothly.
Easy Payment: Pay with Bitcoin,USDT, or bank transfer.
Good Quality: Our products are great, and we support small test orders.

3:FAQ

Q1:Are you a supplier or a manufacturer?
A:We are both a supplier and a manufacturer.

Q2:How will you deliver the goods?
A:We have strong cooperation with Special express line, FEDEX, China Air Post. For container products, we can do sea shipping. You also can choose your own shipping forwarder.

Q3:Which kind of payment terms do you accept?
A:, Bitcoin.USDT.Alipay

Q4:How is the after-sales service?
A:We will provide high-quality products and ensure 100% safe deliver.

Q5:how can we guarantee quality?
A:We will send you a COA (Certificate of Analysis) to you first for you to confirm the quality.

Q6: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products, you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

Q7:Is there any discount?
A:Yes, for larger quantity, we always support with better price
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:
Bulk Drug Intermediates

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:
Retatrutide,Acetic acid water,Tirzepatide

Location:
Room 2701-A046,Building 2,No.76 Lianyungang Road,Shibei District,Qingdao City,Shandong Province,P.R.China

Year of Establishment:
2023

Inquiry History

17 Inquiries

Country	Product	Purchase Quantity	Date Posted
United States	TB500	100 MG	Feb 27, 2026
Portugal	Tb 500	10 MT	Aug 7, 2024
France	TB500	1 KG	Mar 27, 2024
United States	TB500	1 G	Jan 27, 2024
Germany	TB 500	500 MG	Jan 28, 2026
United States	TB500	10 mg	Aug 16, 2024
India	TB500	50 mg	May 9, 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
Italy	TB500	1000 MG	Dec 30, 2024
New Zealand	TB500	100 MG	Jun 24, 2024
Poland	TB500 \| Thymosin β 4 \| CAS 885340-08-9 \| TB 500	1 G	Jul 26, 2025
Poland	Hot Selling N-Acetyl Semax 99% Petide powder NA-semax CAS 80714-61-0 Semax	300 MG	Apr 29, 2026
United States	Raw Tes powder for factory pricing	10 G	Jul 26, 2026

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TB-500 BT2 Discount price Manufacturer Supply Superior quality

Product Description

Seller Information

Inquiry History

Company Introduction

1. Outstanding Product Quality

2. Custom Solutions & R&D Services

3. Diverse Product Range

More Choices Find All Products for Sale 

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