 Home > Biochemical Engineering > Polypeptide > TSH-releasing hormone for Sale > LI20/Livagen

LI20/Livagen

Name: LI20/Livagen
Brand: you-peptide
SKU: pr2610151070
Price: 20 USD
Availability: InStock

TDS 7 Inquiries

Unit Price:

$20/MT FOB

Get Latest Price 

CAS No.:

24305-27-9

Grade:

Pharmaceutical Grade

Content:

99.6%

Port:

Brand:

you-peptide

Packaging:

20mg*10vials

Price valid (until):

2026-11-15

Contact Supplier

 Chat Now

Yiwu Xingxuan Biotechnology 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:

5 days

Qualification:

Main Products:

Semaglutide,Tirzepatide,Retatrutide,cararilin,semax,liraglutide

 Visit Store

Product Description
Seller Information
Inquiry History

Description

Product Detail

ContactInformation： WhatsApp+ 85266382632

Email address： zhongjianhuang896@gmail.com

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,PAYAPL, or bank transfer.

Good Quality: Our products are great, and we support small test orders.

3:Company Introduction

Yiwu Xingxuan Biotechnology Co. Ltd is a professional manufacturer of various peptide products and chemical raw materials.

We have a dedicated R&D team and a reliable, efficient logistics team to ensure you receive high-quality products safely and promptly.In order to serve customers well, the company has established special technical department and after-sale service department. Our customers come from countries including the United States, Europe,

Europe, Japan, South Korea, and India. Most of our main products are in stock and ready for immediate shipment. Please let us know the specific quantity you need.

We will make careful reply if you get any question. We will satisfy market demands by top products and better service, and will welcome market challenge .We will offer you the most competitive price. Feel free to contact us for more information.

4: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 DHL, TNT, UPS, FEDEX, EMS, 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, PayPal.USDT.

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

Protirelin is a highly conserved neuropeptide that exerts the hormonal control of thyroid-stimulating hormone (TSH) levels as well as neuromodulatory functions.
Protirelin is a tripeptide composed of L-pyroglutamyl, L-histidyl and L-prolinamide residues joined in sequence. It has a role as a human metabolite. It is a peptide hormone and a tripeptide.|Protirelin is the pharmaceutically available synthetic analogue of the endogenous peptide thyrotropin-releasing hormone (TRH). It is a tri-peptide tropic hormone, released by the hypothalamus, that stimulates the release of Thyroid Stimulating Hormone (TSH) and prolactin from the anterior pituitary. Although not currently available in any FDA-approved product, protirelin is a component of the TRH Test where it is used to test the response of the anterior pituitary gland in conditions such as secondary hypothyroidism and acromegaly.|A tripeptide that stimulates the release of THYROTROPIN and PROLACTIN. It is synthesized by the neurons in the PARAVENTRICULAR NUCLEUS of the HYPOTHALAMUS. After being released into the pituitary portal circulation, TRH (was called TRF) stimulates the release of TSH and PRL from the ANTERIOR PITUITARY GLAND.

Certificates

Basic Info

Product Name:

TSH-releasing hormone

Other Name:

L-Prolinamide,5-oxo-L-prolyl-L-histidyl-;Thyrotropin-releasing factor;5-Oxo-L-prolyl-L-histidyl-L-prolinamide;L-Pyroglutamyl-L-histidyl-L-prolinamide;L-Pyroglutamyl-L-histidyl-L-proline amide;Synthetic TRH;Synthetic thyrotropin-releasing hormone;(Pyro)-L-glutamic acid-L-histidine-L-proline-NH2;Synthetic TSH-releasing hormone;Synthetic TSH-releasing factor;Synthetic thyrotropin-releasing factor;Lopremone;FDA 1725;Synthetic TRF;Protirelin;TSH-releasing factor;Thyroliberin;TRH;TRF;Thyrotropin-releasing hormone;Thyrotropic hormone-releasing factor;TSH-releasing hormone;Thyrotropic hormone-releasing hormone;Thyrotropic-releasing factor;TSH-RF;Thyroid-stimulating hormone-releasing factor;Thyrotropic releasing hormone;Rifathyroin;Ro 8-6270/9;Thyroid releasing hormone;Relefact TRH;Thyrefact;Rifotironin;Antepan;Prem;Thypinone;Stimu TSH;Abbott 38579;83: PN: US20090175821 PAGE: 403 claimed protein;252: PN: WO2010033207 SEQID: 378 claimed protein;9015-91-2;22365-17-9;22365-02-2;39422-15-6;77666-61-6

CAS No.:

24305-27-9

Molecular Formula:

C16H22N6O4

InChIKeys:

InChIKey=XNSAINXGIQZQOO-SRVKXCTJSA-N

Molecular Weight:

362.38

Exact Mass:

362.38

EC Number:

246-143-4

UNII:

5Y5F15120W

DSSTox ID:

DTXSID0023533

ATC Code:

V - Various

Categories:

Polypeptide

Characteristics

PSA:

150

XLogP3:

-2.43

Appearance:

powder

Density:

1.5±0.1 g/cm3

Boiling Point:

942.1±65.0 °C at 760 mmHg

Flash Point:

523.6±34.3 °C

Refractive Index:

1.617

Water Solubility:

H2O: 10 mg/mL, clear, colorless

Storage Conditions:

−20°C

Vapor Pressure:

0mmHg at 25°C

Collision Cross Section:

181 Å² [M+H]+ [CCS Type: DT, Method: stepped-field]|184.12 Å² [M+Na]+ [CCS Type: DT, Method: stepped-field]|187.07 Å² [M-H]- [CCS Type: DT, Method: stepped-field]|179.2 Å² [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|182.4 Å² [M+Na]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|184.5 Å² [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|183.2 Å² [M+Na-2H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|183.2 Å² [M-2H+Na]-

See More TSH-releasing hormone Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 4, Inhalation

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Warning
Hazard statement(s)	H332 Harmful if inhaled
Prevention	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area.
Response	P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P317 Get medical help.
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More TSH-releasing hormone Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Semaglutide,Tirzepatide,Retatrutide,cararilin,semax,liraglutide

Location:
Room 205, Unit 1, Building 165, Taisui Hall, Dayuan Village, Jiangdong Street, Yiwu City, Jinhua City, Zhejiang Province

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

Average lead Time:
5 days

Total Annual Revenue:
$1 million-$2.5 million

Total Employees:
51-100

Year of Establishment:
2026

Yiwu Xingxuan Biotechnology Co., Ltd(You-Peptide) is a premium peptide company focused on metabolic health. We are committed to developing prescription-grade peptide products, precisely formulating nutritional supplements, and providing one-on-one lifestyle guidance to help your body work in harmony with you, rather than against you.Yiwu Xingxuan Biotechnology Co., Ltd (You-Peptide) was founded by Dr. Elena Zhou and has its own R&D center, cGMP-compliant cleanrooms, and a complete production line where stainless steel reactors seamlessly connect with AI-powered freeze dryers. From sequence design to final

Inquiry History

7 Inquiries

Country	Product	Purchase Quantity	Date Posted
Brazil	TRH Thyrotropin	10 MT	Mar 5, 2026
Italy	Thyrotropin	200 MG	Nov 22, 2024
Netherlands	Livagen	1 G	Apr 26, 2026
United States	TRH (Thyrotropin-Releasing Hormone)	20 MG	Jul 23, 2025
Thailand	Bronchogen	100	Apr 23, 2025
Italy	Protirelin	100 MG	Nov 7, 2024
United States	Protirelin Acetate	10 KG	Nov 15, 2023

Post an enquiry for this product

More Choices Find All Products for Sale 

Product Name	Grade / Content	Price	Supplier Name	Details
High Quality Supply Grade Protirelin Powder CAS 24305-27-9 TRH Peptide Pharmaceutical Research Raw Material	Pharmaceutical Grade/99	$400-500/G FOB	Fulecare	Inquiry
Raw Powder Livagen 99% white Powder Pharmacy with High Purity CAS:24305-27-9	Pharmaceutical Grade/99	$98/MT FOB	Changsha Caoquan Biotechnology Co., Ltd.	Inquiry
Livagen KEDA Lys-Glu-Asp-Ala Tetrapeptide 99% Purity Peptide Lyophilized Powder Factory Supply	Research Grade/99	$100/UNIT FOB	Yiwu Nianwu	Inquiry
Premium freeze-dried Bronchogen for academic pulmonary biology lab projects	Pharmaceutical Grade/99	$40-45/BOU FOB	HONG KONG BURSON POLYPEPTIDE R&D LIMITED	Inquiry
High Quality Bronchogen 99%Freeze-dried powder In stock Minimum Order Hot Selling	Research Grade/99.89	$10/UNIT FOB	Xinhong Bio-Chem Co., Ltd.	Inquiry

LI20/Livagen

Product Description

Seller Information