Growth Hormone Secretagogues

Ipamorelin

Pentapeptide GHS-R agonist

Also known as NNC 26-0161.

A selective pentapeptide agonist of the ghrelin receptor (GHS-R1a), used as a reference secretagogue in pituitary-cell and receptor-pharmacology studies.

Current lot: SN-IPA-2608
Purity: 99.57% by HPLC
Tested: Aug 8, 2026
Stocked in: United States, Canada, Australia

Synamino Sciences research vial with a silver cap on a navy background

Ships from

Vial size

$32.00

USD · 5 mg · In stock

Qty

Order by 2:00 PM PT for same-day dispatch from Reno, Nevada. 1–3 business days by USPS Priority and UPS. Free shipping over $150.00.

For laboratory research use only. Not for human or veterinary use.

About the compound

Ipamorelin was developed as a growth-hormone secretagogue with a narrow activity profile relative to earlier peptides in its class. It is frequently used to study GHS-R signalling in isolation.

Supplied as a lyophilized powder in 5 mg and 10 mg vials.

Studied inGhrelin receptor · Pituitary cell models · Secretagogue selectivity

Certificate of analysis

The certificate for the lot currently shipping. Every vial in that lot carries the same lot number on its label.

Certificate of analysis

Ipamorelin · 10 mg

Lot SN-IPA-2608 · tested Aug 8, 2026

99.57%

Purity by HPLC

Labeled: 10 mg
Measured: 10.3 mg
Panel: 6 passed · 2 reported
Laboratory: Independent ISO/IEC 17025 accredited laboratory

Assay	Method	Result	Outcome
Appearance	Visual	White lyophilized powder	Pass
Purity	HPLC · spec ≥ 98%	99.57%	Pass
Net peptide content	HPLC	10.3 mg	Reported
Identity	LC-MS	Confirmed	Pass
Heavy metals	ICP-MS	Not detected	Pass
Sterility	USP <71>	No growth	Pass
Endotoxin	LAL · USP <85>	< 0.05 EU/mL	Reported
Residual solvents	GC-HS	Within limits	Pass

Specification and storage

CAS number: 170851-70-4
Molecular formula: C38H49N9O5
Molecular weight: 711.9 g/mol
Residues: 5
Sequence: Aib-His-D-2-Nal-D-Phe-Lys-NH2
Reference record: PubChem entry

Storage

Sealed lyophilized vials are stable at room temperature for short periods; store at 2–8 °C for routine use.
For long-term storage keep sealed vials at −20 °C, protected from light and moisture.
Reconstituted solutions should be refrigerated at 2–8 °C and used within the period defined by your laboratory's protocol.

Literature

Peer-reviewed publications on this compound. Provided for reference; they are not claims about this product.

01
European Journal of Endocrinology · 1998
Ipamorelin, the first selective growth hormone secretagogue
Raun K, Hansen BS, Johansen NL, et al.
02
Growth Hormone & IGF Research · 1999
Ipamorelin, a new growth-hormone-releasing peptide, induces longitudinal bone growth in rats
Johansen PB, Nowak J, Skjaerbaek C, et al.
03
Journal of Medicinal Chemistry · 1998
A new series of highly potent growth hormone-releasing peptides derived from ipamorelin
Ankersen M, Johansen NL, Madsen K, et al.

Studied alongside

CJC-1295 (No DAC)
Modified GRF 1–29
from $38.00
CJC-1295 / Ipamorelin
GHRH analogue · GHS-R agonist blend
from $62.00
Sermorelin
GHRH(1–29) amide
from $42.00

Research notice

Ipamorelin is supplied for in vitro laboratory research and analytical use by qualified professionals. It is not a medicine, supplement or cosmetic, has not been evaluated by any regulator, and is not for human or veterinary use. Published findings cited on this page are provided for reference and are not claims about this product.