 Home > Active Pharmaceutical Ingredients > Other Chemical Drugs > L-Leucinamide, N-acetyl-L-α-aspartylglycylglycyl-N-[3-(aminocarbonyl)tricyclo[3.3.1.13,7]dec-1-yl]- for Sale > China quality peptide P21 5mg 99%Lyophilized powder in stock

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China quality peptide P21 5mg 99%Lyophilized powder in stock

TDS 5 Inquiries

Unit Price:

$1/UNIT FOB

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CAS No.:

1246751-68-7

Grade:

Pharmaceutical Grade

Content:

99.8%

Port:

Chinese mainland

Brand:

any

Packaging:

Vial/Bottle/Bag/Carton

Price valid (until):

2026-09-30

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Guangzhou Anymang Technology Co., Ltd.

Company Type:

Trader

Location:

China

Payment Terms:

TT against copy of documents,TT against B/L draft before shipment,100% TT in advance

Average Lead Time:

45 days

Qualification:

Main Products:

Semag lutide,Tirzepatide,Retatrutide,raw material,GHK-CU,TB500(Thymosin B4 AceTate)

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Product Description
Seller Information
History Price
Inquiry History

Description
  Product Detail

What is it? T hy malin is a natural polypeptide complex extracted from calf thymus glands , containing various biologically active small protein molecules (peptides). It is not a single compound, but a natural combination of multiple thymic hormones that mimic the function of a young, healthy thymus.

Thy ma lin is a natural polypeptide complex extracted from calf thymus glands, essentially a set of synergistic bioactive signaling molecules. Its core function is to reboot and optimize the immune system's "command center" —the thymus, an organ that atrophies with age, leading to declining bodily defenses. By delivering key "instructions" necessary for normal thymic function, Thymalin promotes the maturation and training of new immune cells and coordinates communication between different immune components. This helps the body respond more intelligently to infections, aging, and stress. It not only enhances weakened immune function but also balances excessive immune responses. In the field of anti-aging, it demonstrates unique potential—by revitalizing thymic function, it may delay immune senescence, improve tissue repair capacity, and even enhance overall vitality. Though it has decades of clinical use in countries like Russia, it remains a regenerative medicine tool requiring professional guidance rather than a mainstream supplement.

Uses Immune Function Restoration : For immune system decline due to aging, illness, stress, or treatments like chemotherapy/radiation

Anti-aging Intervention : As part of comprehensive anti-aging protocols to reverse age-related immune decline

Infection Adjunct Therapy : Helping the body fight stubborn, recurrent infections

Post-operative/Trauma Recovery : Accelerating recovery after surgery, burns, or severe trauma

Elderly Health Maintenance : Helping older adults maintain better overall health and infection resistance

Functions

1."Reboot" the Immune System : Like "recharging and restarting" an aging immune system

2.Increase "Immune Soldiers" : Promote the body to produce more and more effective immune cells

3.Improve Recognition Ability : Help the immune system better distinguish between "self" and "invaders"

4.Coordinate Immune Responses : Ensure immune responses are strong enough but not excessive

5.Promote Whole-body Repair : Benefits not only the immune system but also repairs other tissues

Mechanism of Action

1.The Thymus's Role :

The thymus is the "military academy" that trains immune cells (T-cells)

A young thymus efficiently trains large numbers of elite "immune soldiers"

But as we age (after 20s), this "academy" gradually shrinks and becomes less efficient

2.How Thymalin Works :

Supplies "Training Materials" : Thymalin provides the various "training materials" the thymus needs to function properly

Restores Academy Function : Helps the aging "military academy" regain some training capacity

Produces New Recruits : Promotes the generation of new, combat-effective immune cells

Enhances Veteran Ability : Also improves the function of existing immune cells

Improves Communication : Optimizes "communication and coordination" between different parts of the immune system

3.Simple Analogy :

Like replacing the battery + system optimization for an aging phone, not just charging the old battery

Not only increases "soldier numbers" but improves "soldier quality" and "command system efficiency"

1. Ultra-High Purity

Each batch is synthesized and purified to >99% purity (HPLC), ensuring reliable and reproducible results in sensitive experiments.

2.Accurate Dosing & Consistency

Our peptides are precisely weighed and vacuum-sealed under sterile conditions. Batch-to-batch consistency is rigorously maintained.

3.Endotoxin-Free & Sterile Processing

Manufactured in a cleanroom environment, our peptides are free from endotoxins, microbial contamination, and other impurities that could interfere with cell-based or in vivo studies.

1. Expertise in Peptide Synthesis

Extensive Experience: 10 Years of expertise in synthetic peptide development.

Skilled Team: Experts in solid-phase and liquid-phase synthesis.

2. Advanced Manufacturing Capabilities

Cutting-Edge Facilities: High-precision equipment ensuring purity and bioactivity.

Scalable Production: From milligram-scale research peptides to multi-kilogram industrial batches.

3. Innovation & Customer Commitment

Reliable Supply Chain: Competitive pricing & timely global delivery.

Global Reach: pharmaceutical firms & industrial clients worldwide.

Items Specifications

5mg
Research & Reference Note

China quality peptide P21 5mg 99%Lyophilized powder in stock is listed on ECHEMI for industrial / laboratory sourcing. This listing is for industrial and laboratory research use. Product information on ECHEMI is provided for sourcing and specification reference. 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.
Authoritative sources

PubChem

ClinicalTrials.gov

FDA Drugs@FDA

NIH
Disclaimer: This listing is for industrial and laboratory research use. Product information on ECHEMI is provided for sourcing and specification reference. 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.

Reviewed by ECHEMI Scientific Review - Platform editorial review for research chemicals
Certificates
- TDS
Basic Info

Product Name:
L-Leucinamide, N-acetyl-L-α-aspartylglycylglycyl-N-[3-(aminocarbonyl)tricyclo[3.3.1.13,7]dec-1-yl]-

Other Name:
L-Leucinamide, N-acetyl-L-α-aspartylglycylglycyl-N-[3-(aminocarbonyl)tricyclo[3.3.1.13,7]dec-1-yl]-;P21 (P021);Peptide021(P021);L-Leucinamide P21 Peptides

CAS No.:
1246751-68-7

Molecular Formula:
C27H42N6O8

Molecular Weight:
578.66

Categories:
Other Chemical Drugs

Characteristics

Density:
1.33±0.1 g/cm3(Predicted)

Boiling Point:
1061.4±65.0 °C(Predicted)

PKA:
4.23±0.10(Predicted)
Seller Information

Business Type:
Trader

Main Products:
Semag lutide,Tirzepatide,Retatrutide,raw material,GHK-CU,TB500(Thymosin B4 AceTate)

Location:
Room 1002-C3973, No. 80, Yongtai Modaonan Street, Yongping Subdistrict, Baiyun District, Guangzhou City

Payment Terms:
TT against copy of documents,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
45 days

Year of Establishment:
2026

Anymang is a US-based trading company dedicated to the global supply and formulation of high-quality cosmetic raw materials, with a core focus on peptide ingredients. Committed to bridging premium suppliers and beauty manufacturers worldwide, we deliver pure, stable, and efficacious peptides—including anti-aging, brightening, and firming peptides—alongside a full spectrum of cosmetic actives and custom formulation solutions. With rigorous quality control and compliance with US safety standards, we ensure consistent batch quality and reliable delivery. Our experienced team provides professional technical support and tailored services to help clients develop competitive skincare and personal care products. Trusted by partners across the globe, Anymang stands as your dependable partner for innovative, high-performance cosmetic raw materials and peptide formulations.
Weekly Price

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Inquiry History

5 Inquiries

Country	Product	Purchase Quantity	Date Posted
Canada	P21	10 PCS	Jul 8, 2026
United States	p21	5 MG	Apr 28, 2026
Germany	P21	1 KG	Apr 12, 2026
Germany	P21	1 G	Apr 6, 2026
Germany	Peptide 021 (P21)	1	Mar 18, 2026

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China quality peptide P21 5mg 99%Lyophilized powder in stock

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