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Protirelin

Also known as: Thyrotropin-releasing hormone, TRH, TRF, L-pyroglutamyl-L-histidyl-L-prolinamide, pGlu-His-Pro-NH2, Pyr-His-Pro-NH2, 5-Oxo-L-prolyl-L-histidyl-L-prolinamide, Thypinone, Prem, Stimu TSH, Lopremone, Glp-His-Pro-NH2, Pyroglutamylhistidylprolinamide

Protirelin (CAS 24305-27-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C16H22N6O4 and a molecular weight of 362.38 g/mol. Key properties include a boiling point of 942.1±65.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 523.6±34.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
24305-27-9
Jingsj CID
J-1993603-9
Molecular Formula
C16H22N6O4
Molecular Weight
362.38 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point942.1±65.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point523.6±34.3 °C
PSA144.49000
LogP-2.43
Vapor Pressure0.0±0.3 mmHg at 25°C
Refractive Index1.617
Storage Conditions-20℃
Additional PropertyH2O: 10 mg/mL, clear, colorless

Activity & Biological Data

TargetThyroid hormone receptor
Additional Information[1]. Van Sinay E, et al. Evolutionarily conserved TRH neuropeptide pathway regulates growth in Caenorhabditis elegans. Proc Natl Acad Sci U S A. 2017 May 16;114(20):E4065-E4074. [2]. Noda Y, et al. Hyperthermia induced by thyrotropin-releasing hormone (TRH, Protirelin) in the rat. Kurume Med J. 1979;26(2):107-12.

Frequently Asked Questions

What is the CAS number of Protirelin?

The CAS number of Protirelin is 24305-27-9.

What are the molecular formula and molecular weight of Protirelin?

Protirelin has molecular formula C16H22N6O4 and molecular weight 362.38 g/mol.

What are the upstream and downstream products of Protirelin?

For Protirelin, Upstream Products: L-Prolinamide, N-alpha-tert-Butoxycarbonyl-L-histidine methyl ester, Boc-L-pyroglutamic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Protirelin (CAS 24305-27-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993603-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.