LI20 99% purity safe delivery quickly research peptide are in dicount
7 Inquiries
24305-27-9
Pharmaceutical Grade
99%
China
KZY
20mg/vial
2026-09-27
Retatrutide,Tirzepatide,Samaglutide
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Product Description
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Seller Information
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Inquiry History
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DescriptionECHEMI Editorial ReferenceProtirelin 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.Research & Reference NoteLI20 99% purity safe delivery quickly research peptide are in dicount 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 sourcesDisclaimer: 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
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:
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 Ų [M+H]+ [CCS Type: DT, Method: stepped-field]|184.12 Ų [M+Na]+ [CCS Type: DT, Method: stepped-field]|187.07 Ų [M-H]- [CCS Type: DT, Method: stepped-field]|179.2 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|182.4 Ų [M+Na]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|184.5 Ų [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|183.2 Ų [M+Na-2H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|183.2 Ų [M-2H+Na]-
Hazard IdentificationClassification of the substance or mixture
Acute toxicity - Category 4, Inhalation
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Warning
Hazard statement(s) H332 Harmful if inhaled
Precautionary statement(s) 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 StoragePrecautions 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.
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Seller Information
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Business Type:
Trader
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Main Products:
Retatrutide,Tirzepatide,Samaglutide
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Location:
Room 205, Sanyuanli Avenue, Baiyun District, Guangzhou City
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Payment Terms:
TT against copy of documents,100% TT in advance
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Average lead Time:
1
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Total Annual Revenue:
$10 million-$25 million
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Total Employees:
101-200
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Year of Establishment:
2026
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Inquiry History7 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
