2381089-83-2
Most orderedRetatrutide
Single-molecule agonist at the GIP, GLP-1 and glucagon receptors. Supplied lyophilised and released at ≥ 99.0% by RP-HPLC.
Typical release99.4%
From
£68.00
In stock
Research-grade materials · United Kingdom
Peptides you can put in a paper.
Every batch is assayed by reversed-phase HPLC and mass spectrometry, released against a written specification, and shipped with the certificate that documents it. Traceable from the vial in your hand back to the run that made it.
Have a vial? Check its release record
Batch RYZ-RETA-26071 · retatrutide · released 14 July 2026
Reversed phase · UV 214 nm · area %
What happens before it ships
Synthesis oversight
Every run reconciled against its build record before purification.
Analytical release
RP-HPLC and ESI-MS on every batch, against written specification.
Fill and seal
Gravimetric fill check, inert headspace, tamper-evident closure.
Dispatch
Same working day on orders placed before 14:00.
The catalogue
Organised by mechanism, not by outcome
You know the receptor family or the pathway you are working on. That is the axis the catalogue is built on.
Metabolic & Incretin
05Agonists at the GLP-1, GIP and glucagon receptors, and adjacent regulators of energy balance.
Mitochondrial & Longevity
05Mitochondrial-derived peptides, redox cofactors and compounds studied in cellular ageing.
Neurological & Cognitive
04Neuropeptides and ACTH fragment analogues studied in neurotrophic and cognitive models.
Growth Factor & Secretagogue
06GHRH analogues and ghrelin receptor agonists used in somatotropic axis research.
Tissue Repair & Regenerative
04Peptides studied in angiogenesis, matrix remodelling and wound-healing models.
Immune & Signalling
02Thymic peptides and host defence sequences used in immunomodulation research.
Melanocortin & Receptor Ligands
01Cyclic and linear ligands at the melanocortin receptor family.
Reagents & Consumables
01Diluents, vials, filters and the consumables needed to work with lyophilised material.
Most ordered line
Retatrutide
Retatrutide, developed as LY3437943, is a synthetic 39-residue peptide engineered to act as a balanced agonist at three incretin and counter-regulatory receptors in one molecule: GIPR, GLP-1R and GCGR. It is the compound that established the tri-agonist as a distinct pharmacological class, and it is the reference molecule against which subsequent multi-agonists are characterised.
- CAS
- 2381089-83-2
- Formula
- C221H342N46O68
- Average mass
- 4731.33 g/mol
- Specification
- ≥ 99.0% (RP-HPLC, area %)
View Retatrutide
From £68.00 · ex VAT
In stock now
Released this quarter
1627580-64-6
Most orderedMOTS-c
A 16-residue mitochondrial-derived peptide encoded in mtDNA. Supplied lyophilised, released at ≥ 99.0% by RP-HPLC.
Typical release99.2%
From
£86.00
In stock
53-84-9
Most orderedNAD+
The oxidised pyridine dinucleotide cofactor, supplied lyophilised for redox, sirtuin and PARP work. Released at ≥ 98.0% by HPLC.
Typical release98.8%
From
£42.00
In stock
2920938-90-3
Most orderedN-Acetyl Semax Amidate
Terminally protected Semax analogue — N-acetylated, C-amidated. Released at ≥ 99.0% by RP-HPLC.
Typical release99.5%
From
£39.00
In stock
How material is released
Four steps, and nothing skipped when we are busy
Release is a sequence. Each step gates the next, and material that fails one does not proceed to the following one.
Receive
Incoming material is quarantined and reconciled against its manufacturing record before anything else happens.
Assay
Purity by gradient RP-HPLC at 214 nm, identity by ESI-MS against theoretical mass, water by Karl Fischer.
Release
Results are checked against the written specification for that compound. Anything outside it is rejected, not downgraded.
Document
The certificate is issued against the batch code printed on the vial, and published to the batch lookup.
Written for the bench
Guides worth the time
Method notes and compound reviews, written by the people who run the assays.
11 Jun 2026 · 9 min
MOTS-c research: what the evidence actually shows
A mitochondrial peptide that regulates a nuclear metabolic sensor. What the primary literature establishes, what it does not, and what that means for anyone designing work with it.
28 May 2026 · 8 min
AC-Semax-NH2 research: what terminal capping changes
N-acetylation and C-amidation are protective modifications, not pharmacophoric ones. Understanding that distinction is what keeps a Semax protocol reproducible when the analogue changes.
14 May 2026 · 9 min
Mass spectrometry peptide testing: confirming what you have
Chromatography tells you a sample is homogeneous. Mass spectrometry tells you what it is. The distinction is the difference between a clean chromatogram and a confirmed identity.
Trade and institutional supply
Buying for a group, a facility or a distribution network
Tiered pricing from the first order, purchase-order terms for institutions, reserved stock on lines you use repeatedly, and one named contact who knows your account.
Certificates supplied on every trade consignment