Research background
Sermorelin is the unmodified 29-residue N-terminal fragment of human GHRH and the minimal sequence retaining full receptor activity. It serves as the parent reference molecule against which stabilised GHRH analogs are compared.
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Sermorelin 5 mg lyophilized research peptide vial, PRIMEGEN LABS front label. Buy Sermorelin 5 mg from PrimeGen Labs — 99.2% purity lyophilized Sermorelin peptide for laboratory research, third party tested by HPLC and mass spectrometry, supplied in a sealed 10 mL borosilicate vial with a batch-matched certificate of analysis.
Growth Hormone Research
Sermorelin
GHRH (1-29)
In stock
Truncated GHRH analog used as a reference standard in pituitary-axis studies.
$27.00
- Third-party tested
- Ambient-stable transit
- Lot traceable
- Batch-matched COA
- Tracked delivery
- Research use only
For laboratory research use only. Not for human or veterinary consumption.
Laboratory specifications
- Purity (RP-HPLC)
- 99.2%
- Molecular formula
- C149H246N44O42S
- Molecular weight
- 3357.9 g/mol
- CAS number
- 86168-78-7
- Form
- Lyophilized powder
- Appearance
- White to off-white lyophilized powder or cake, free of visible particulates.
- Solubility
- Sterile or bacteriostatic water; DMSO for hydrophobic sequences
- Endotoxin
- < 0.25 EU/mg
- Fill weight
- 5 mg
- Storage temperature
- -20 °C sealed · 2–8 °C after reconstitution
- Shelf life
- 36 months at -20 °C from the manufacture date
- Reconstitution
- Add diluent slowly down the vial wall; do not shake or vortex
- Synthesis
- Solid-phase (SPPS)
- Identity
- ESI-MS confirmed
- Residual solvent
- < 0.5%
- Closure
- Crimped aluminium / butyl stopper
- Manufacturer
- PRIMEGEN LABS · PrimeGen Co.
Storage & handling
Long-term
-20 °C, sealed, desiccated
In transit
Ambient stable up to 21 days
After reconstitution
2–8 °C, use within 21 days
Light exposure
Protect from direct light
Certificate of analysis
Lot XX · HPLC + MS report issued by an independent laboratory. The released PDF is available on request.
- Lot number
- XX
- EXP
- XX/XXXX
- COA date
- On request
- Testing laboratory
- Independent ISO lab
- Purity
- 99.2%
- Testing method
- RP-HPLC + ESI-MS
- Batch status
- Released — report on request
A batch-matched digital certificate for lot XX is available on request.
Mechanism of action
Full agonist at the GHRH receptor, raising cAMP in somatotrophs. Unmodified, it is rapidly inactivated by DPP-4 cleavage at the N-terminus, which is precisely why it is used as the baseline in half-life extension studies.
Areas of scientific investigation
- Baseline GHRH receptor agonist reference
- DPP-4 cleavage kinetics
- Pituitary function assay validation
- Comparative analog stability research
Listed fields describe where this sequence appears in published in vitro and preclinical literature. They are not indications, applications, or claims of effect.
Laboratory handling
Reconstitution
Allow the vial to reach room temperature before opening to prevent condensation on the lyophilized cake. Add sterile or bacteriostatic water slowly down the inner wall of the vial, then let the powder dissolve without agitation; swirl gently if needed. Do not shake or vortex — shear forces denature peptide secondary structure and cause foaming that traps material on the stopper.
Stability
As a sealed lyophilized powder the material is stable for extended periods at -20 °C when kept desiccated and protected from light. Once in solution, stability shortens considerably: aqueous stocks are normally held at 2-8 °C for short term work or aliquoted and frozen for longer storage. Repeated freeze-thaw cycling is the most common cause of measurable potency loss.
Packaging
Single sequence per vial, sealed under inert gas in USP Type I borosilicate glass with a butyl rubber stopper and crimped aluminium overseal. Each vial carries a printed PRIMEGEN LABS label with product name, strength, lot number, manufacture and retest dates, storage temperature and a QR code linking to the lot record. Vials ship in a rigid foam insert inside a protective mailer at ambient temperature.
Frequently asked questions
Compare with similar compounds
Sermorelin vs CJC-1295 DAC, CJC-1295 No DAC, Tesamorelin
| Compound | Strength | Category | Molecular weight | Availability | Price |
|---|---|---|---|---|---|
| SermorelinThis page | 5 mg | Growth Hormone Research | 3357.9 g/mol | In stock | $27.00 |
| CJC-1295 DAC | 2 mg | Growth Hormone Research | 3647.2 g/mol | Low stock · few lots left | $20.00 |
| CJC-1295 No DAC | 2 mg | Growth Hormone Research | 3367.9 g/mol | In stock | $16.00 |
| Tesamorelin | 2 mg | Growth Hormone Research | 5135.9 g/mol | In stock | $15.00 |
Pairs well with
Complementary compounds researchers run alongside Sermorelin — never competing alternatives.
Complete your order
Laboratory consumables matched to 1 vial in your cart.
Bacteriostatic Water
30 mL
1 × 30 mL — one vial of diluent per 3 peptide vials
$16.00
Sterile Syringes
10-pack · 1 mL
10-pack covers a standard order
$13.00
Alcohol Prep Pads
100-pack
Septum decontamination before every draw
$9.00
Vial Storage Case
25 slots
Keeps lots organised and light-protected
$33.00
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CJC-1295 DAC
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Strength
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- High purity
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- COA available
Low stock · few lots left$20.00View detailsCJC-1295 No DAC
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- Batch tested
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In stock$16.00View detailsTesamorelin
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Strength
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Purity
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- High purity
- Batch tested
- COA available
In stock$15.00View details