Protirelin Powder GMP Manufacturer in China | High-Purity TRH Peptide API Supplier for Endocrine Research & HPT Axis Studies
Key Product Highlights
- High specific TRHR binding matching native endogenous TRH
- Dose-dependently induces TSH and prolactin release
- Recreates complete HPT endocrine regulatory pathway
- Great water solubility for steady in vitro & in vivo assays
- Low impurities ensure consistent experimental reproducibility
What Is Protirelin Powder and How Does TRH Function in Endocrine Regulation?
Protirelin Powder(TRH, Thyrotropin-Releasing Hormone) is a synthetic tripeptide that is chemically identical to endogenous hypothalamic TRH.
Its sequence is pyroglutamyl–histidyl–proline amide (pGlu-His-Pro-NH₂).
It binds specifically to TRH receptors located in the anterior pituitary gland, regulating endocrine hormone secretion and maintaining the hypothalamic–pituitary–thyroid axis homeostasis.
This product is supplied as a white to off-white powder manufactured under strict GMP standards, using optimized Fmoc solid-phase peptide synthesis (SPPS), followed by multi-step preparative RP-HPLC purification and desalting.
Mass spectrometry and sequence analysis confirm high structural identity, purity, and batch-to-batch consistency.
What Does the COA Include for Protirelin Powder?
|
Item |
Specification |
Result |
|
Appearance |
White to off White powder |
Consistent |
|
Purity(HPLC) |
≥98% |
99.01% |
|
MS |
Consistent |
Consistent |
|
Conclusion |
The product complies with the requirements |
|
What Are the Advantages of Protirelin Powder in Endocrine Research?
1. High Receptor Specificity and Stable Activity
Protirelin binds selectively to TRH receptors without off-target interactions, ensuring stable and reproducible endocrine signaling.
2. Dual Endocrine and Neurobiological Functions
It regulates TSH and prolactin secretion while also modulating TRH receptors in the central nervous system.
3. Excellent Water Solubility and Handling Stability
Fully soluble in aqueous buffers without the need for organic solvents, suitable for both in vitro and in vivo experiments.
4. Reliable Diagnostic Differentiation Tool
Provides clear TSH response patterns, enabling differentiation between primary and secondary hypothyroidism in experimental models.
5. Low Impurity Profile for High Experimental Accuracy
GMP-controlled purification minimizes truncated peptides, oxidized species, and sequence variants.
What Are the Applications of Protirelin Powder?
- Thyroid axis functional research
- Hypothalamic–pituitary disorder studies
- TSH and prolactin secretion assays
- Neuroendocrine signaling pathway research
- TRH stimulation diagnostic model development (preclinical)
- Peptide injectable formulation development
What Are the Core Manufacturing Advantages of Protirelin Powder?
- GMP-compliant Fmoc solid-phase peptide synthesis platform
- Strict impurity control strategy for tripeptide stability
- Multi-stage RP-HPLC purification system
- Full batch traceability from raw materials to final API
- Scalable production from mg to kg quantities
What Is the Mechanism of Action of Protirelin Powder?
1. Pituitary Hormone Secretion Activation
Protirelin activates TRH receptors, triggering PLC/IP3 signaling pathways, leading to intracellular calcium release and subsequent TSH and prolactin secretion.
2. HPT Axis Feedback Regulation
It stimulates thyroid hormone (T3/T4) production, forming a negative feedback loop that maintains endocrine homeostasis.
3. Central Nervous System Modulation
Protirelin influences neurotransmitter release and neuronal excitability in brain regions expressing TRH receptors.
4. Diagnostic Functional Differentiation
TSH response patterns help distinguish pituitary, hypothalamic, and peripheral endocrine dysfunction.
How Is Quality Assurance Ensured for Protirelin Powder?
- GMP-certified cleanroom manufacturing environment
- Qualified raw material sourcing and supplier audit system
- Full batch traceability system
- Stability testing under -20°C storage conditions
- Optional third-party analytical verification
FAQ
Q: What is protirelin used for?
A: For HPT axis research, thyroid disorder identification and neuroendocrine mechanism studies.
Q: What is the function of protirelin?
A: Protirelin Powder binds pituitary TRHR to trigger dose-dependent TSH and prolactin release.
Q: What are the side effects of protirelin peptide?
A: Mild transient flushing, nausea or headache; symptoms fade quickly.
Q: What is protirelin used for?
A: Preclinical stimulation tests and in vitro hormone secretion assays.
factory
Certificates
Shipping & Packing
Where to Buy FLAG Peptide Powder GMP API in China?
We supply GMP-grade Protirelin Powder for endocrine research, neurobiology studies, and peptide API development.
We support:
mg–kg bulk supply
Full COA and analytical documentation
Technical consultation
Global shipping support
Contact:
WhatsApp: +8619991242181
Email:sales@hdmbio.com
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