Ipamorelin 5mg
£18.99 per vial · Peptides · Research use only
About Ipamorelin 5mg
Ipamorelin 5mg is a synthetic pentapeptide, supplied as lyophilised powder in a single vial for in-vitro laboratory research.
Product specifications
- Compound
- Ipamorelin
- Declared content
- 5mg per vial
- Format
- Lyophilised powder
Batch documentation
The current published lot is IP-IPAM5-001. The batch record from Janoshik Analytical (CZ), dated 24 August 2026, lists reported purity of 99.798% (RP-HPLC) and measured content of 5.45 mg/vial.
View the certificate of analysis →
Intended use
For in-vitro laboratory research only. Not for human or veterinary use.
Technical notes and further reading
- CAS number
- 170851-70-4
- Molecular formula
- C38H49N9O5
- Molecular weight
- 711.9 g/mol
- Sequence
- Aib-His-D-2-Nal-D-Phe-Lys-NH₂
Specification
| SKU | IPA5 |
|---|---|
| Compound | Ipamorelin |
| Price | £18.99 per vial |
| Format | 5mg per vial |
| Availability | In stock |
| CAS number | 170851-70-4 |
| Molecular formula | C38H49N9O5 |
| Molecular weight | 711.9 g/mol |
| Sequence | Aib-His-D-2-Nal-D-Phe-Lys-NH₂ |
| Published batch / lot | IP-IPAM5-001 |
| Reported purity | 99.798% (RP-HPLC) |
| Measured content | 5.45 mg/vial |
| Identity status | LC-MS identity result not published |
| Tested by | Janoshik Analytical (CZ) |
| Report date | 2026-08-24 |
| Storage | Lyophilised: −20 °C, protect from light |
| Certificate of analysis | Published for lot IP-IPAM5-001 — download it from this page, or request a copy |
| Intended use | In-vitro laboratory research only |
Ipamorelin 5mg: single peptide or blend
The Ipamorelin 5mg listing contains the single research peptide. The separate CJC-1295 + Ipamorelin 10mg product declares 5mg of each component, so its total 10mg fill is not 10mg of Ipamorelin. Compare the composition and batch record for the specific listing you need. Both pages show current prices and dispatch information for UK laboratory orders.
- CJC-1295 + Ipamorelin 10mg — Compare the current price, availability and batch record.
What does the research on Ipamorelin investigate?
Ipamorelin is a pentapeptide with an unusual profile: it contains no cysteine, no methionine and no tryptophan, so it has none of the residues responsible for most peptide instability, and it contains Aib, or alpha-aminoisobutyric acid, a non-natural residue that is both achiral and a strong helix former. The combination makes it one of the most robust small peptides in this catalogue - there is no oxidative liability and no disulfide to form - so its purity trace is read for synthesis by-products rather than for storage damage. The achiral Aib is worth noting for a different reason: because it has no stereochemistry to get wrong, batch-to-batch variation from that position is not a concern in the way it is for peptides built from D-configured residues. In-vitro work uses this sequence in receptor-binding studies at the ghrelin receptor. That is a description of an interaction in a test system.
Who can buy Ipamorelin?
Ipamorelin is supplied strictly as a research chemical for in-vitro laboratory research. Products are sold exclusively to qualified researchers and licensed laboratories.
At checkout the buyer confirms that they are 18 or over, are buying in the course of research, and are responsible for handling, storing and disposing of the material in line with their laboratory's procedures. Ipamorelin is not for human or veterinary use.
We only answer questions about specifications, documentation and orders.
How are identity and quality assured?
Each released lot is tested and the result is published, rather than the material being described as high purity on the strength of a supplier's word. Purity is measured by reversed-phase HPLC at an independent laboratory. The laboratory used for every lot published so far is Janoshik Analytical, in the Czech Republic, and the result is stated alongside the measured content against label so the two can be read together.
The report carries the lot number printed on the vial, which is the part that matters. A certificate showing a result without a lot number cannot be tied to the vial in front of you, and a certificate for a different lot tells you nothing about yours. Matching the printed number on the label to the number on the report is a five second check and it is the whole point of publishing both.
Identity confirmation by mass spectrometry is a separate test and is ordered as an add-on, so the figures published here come from RP-HPLC purity testing unless a report says otherwise. Where no report is published for a listing yet, the documentation held for the lot being shipped can be requested before you order. We would rather send you what exists than let you assume a certificate is available when it is not.
Synthesis and supply
Peptide material is built by solid-phase synthesis, purified by preparative HPLC, then lyophilised. Lyophilisation freezes the solution and removes the solvent under vacuum, which is why the vial arrives holding a cake or powder rather than a liquid and why a solvent has to be added before the material can be worked with. Removing water also removes the main route by which a peptide degrades in storage, which is the reason the format is used.
Sequence length and modification are what make batches differ in difficulty. Every coupling step is an opportunity for a truncated or deleted by-product, and a heavily modified or long chain presents more of them, which is why the purity trace rather than the headline figure is what a certificate is read for. Vials are filled and labelled with the lot number, and the lot number is what the report and the verification lookup resolve against.
External resources for researchers
These are the public reference sources we use when checking the identity of Ipamorelin, and the ones worth going to before relying on anything stated on a product page, including this one.
- PubChem — Compound records, computed properties, depositor-supplied identity data.
- CAS Common Chemistry — CAS Registry lookups where a registry number is known.
- ChEBI — Curated chemical ontology entries with cross-references.
- Europe PMC — Primary literature search by compound name, sequence or registry number.
- Certificate hub — Reports published for the lots released so far.
Frequently asked questions
What is Aib and why is it at position one?
Alpha-aminoisobutyric acid: alanine with an extra methyl group on the alpha-carbon, which leaves that centre achiral. It constrains backbone conformation and removes a recognition site for aminopeptidases. It is a standard building block in constrained-peptide design and is not one of the natural amino acids.
How does ipamorelin differ from the GHRP hexapeptides?
It is a pentapeptide rather than a hexapeptide, and the literature characterises it as more selective at GHS-R1a than the earlier compounds in the class. Structurally it shares the D-2-Nal and D-Phe motif with GHRP-2 but replaces the opening residues with Aib-His.
Why does ipamorelin appear both alone and in a blend?
The two serve different documentation needs. A single-compound lot carries one expected mass on its certificate; the CJC-1295 blend lot carries two and is reviewed as a blend. Laboratories that want the components in a ratio of their own choosing take the single vials.
Is Ipamorelin supplied for human or veterinary use?
No. Ipamorelin is supplied as a lyophilised powder in a sealed vial and is supplied strictly as a research chemical for in-vitro laboratory research. Products are sold exclusively to qualified researchers and licensed laboratories, and buyers confirm they are 18 or over and purchasing in the course of research. We only answer questions about specifications, documentation and orders.
How is the purity figure measured, and what does it actually tell me?
Purity is measured by reversed-phase HPLC at an independent laboratory, and the result is published with the method conditions rather than as a bare percentage. The figure is the proportion of the UV-absorbing material in the chromatogram that elutes as the target peak. It describes the sample as analysed; it is not a statement about what the material is for. A high figure alongside a clean chromatogram is the useful combination, which is why the report is worth reading rather than the headline number alone.
What documentation comes with a batch?
Each released lot carries a number printed on the vial label and a report stating purity by RP-HPLC, measured content against label, and the testing laboratory. Reports published so far are listed on this page and collected on the certificate hub, and each carries a lot number that can be checked against the vial in front of you. Where a report is not yet published for a listing, ask before ordering and we will send the documentation that exists for the lot being shipped.
How should Ipamorelin be stored?
In the form supplied, as a lyophilised powder, the material is stable kept cold, dry and dark. For powder, that means a freezer at around minus 20 degrees Celsius, desiccated, with the vial sealed and shielded from light, which is how it should stay until you are ready to work with it. Bringing a vial to room temperature before opening avoids condensation on the contents. Once in solution the material is less stable than the powder and should be kept cold and used within a short working window. Choosing a solvent and storage conditions for your own work is your call, not ours.
Do I need bacteriostatic water to prepare it?
A lyophilised powder needs a solvent added before it can be worked with. Bacteriostatic water, which is water with 0.9% benzyl alcohol, is the common choice because the preservative extends the working life of the solution once the vial has been opened, and we supply it in 3ml and 10ml vials. It is not the only option: where a method cannot tolerate benzyl alcohol, use the solvent the method specifies. The choice affects the sample, so it belongs to the researcher.
How and when is an order shipped?
Orders are dispatched from the United Kingdom. An order placed before 4pm on a working day is collected the same day; weekends and bank holidays roll forward to the next working day. Delivery is tracked, and shipping is free on UK orders over 30 pounds, with tracked 48 hour service at 3.65 pounds below that. Tracking is sent when the parcel is collected, so the first scan is usually visible the same evening.
What is Aib, and why is it in the sequence?
Alpha-aminoisobutyric acid, a non-natural residue with two methyl groups on its alpha carbon. It is achiral, meaning it has no left- or right-handed form to get wrong, and it strongly favours a helical shape in the chain. It also blocks enzymes, which cannot easily cleave a bond on either side of it. In a pentapeptide that combination is what gives the molecule enough resistance to be useful as a research material.
Why is ipamorelin more stable than other small peptides?
Because of what is absent. It has no cysteine to form disulfide bridges, no methionine and no tryptophan to oxidise, so the three most common routes to degradation in a peptide are unavailable to it. That leaves ordinary hydrolysis, which is slow in a dry powder kept cold. The result is a material whose purity trace reflects how well it was synthesised rather than how it has been stored.
Does the achiral residue matter for quality control?
It removes one question rather than raising one. For peptides containing D-configured residues, confirming the stereochemistry is a real analytical problem, because routine purity testing will not distinguish a correct chain from its mirror image. Aib has no mirror image to distinguish, so that particular uncertainty does not arise, which slightly simplifies what a certificate needs to establish.
How should a five-residue peptide be stored?
The standard conditions for lyophilised material: around minus 20 degrees Celsius, desiccated, sealed and protected from light, with the vial brought to room temperature before opening so condensation does not settle on the powder. Once dissolved the material is less stable than the dry powder and should be kept cold and used within a short working window.
Documentation & batch verification
The current released lot is IP-IPAM5-001, tested 2026-08-24 by Janoshik Analytical (CZ): RP-HPLC purity 99.798% (RP-HPLC), measured content 5.45 mg/vial, identity Purity confirmed (RP-HPLC). The full report for this lot is published and can be checked online — verify this batch. See the full record for lot IP-IPAM5-001 or all published certificates of analysis.
Published batch records show the laboratory, report date, purity and measured content where reported. Check the certificate for the exact lot: an HPLC purity result does not establish LC-MS identity, sterility or suitability for human or animal use. Review the published batch record before ordering.
Order Ipamorelin 5mg online — UK dispatch · Request an invoice · Verify a batch
Research use only. Not for human or animal consumption.