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

Retatrutide research peptide

$189.00 – $567.00

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

  • ≥99% by HPLC (lot-specific)
  • Canada fulfilment

Size

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Third-party lab verified

HPLC + MS

Independently tested for identity and purity

Batch
RETA-081426
Tested
August 14, 2026
Purity
99.4%

Tested by Testides

Retatrutide

$189.00

Product description

Retatrutide research peptide is supplied to qualified Canadian institutions as a characterized laboratory material for in vitro receptor-pharmacology and analytical method development. The compound is a synthetic peptide described in the peer-reviewed literature as a single-molecule agonist at GIP, GLP-1, and glucagon receptors (LY3437943).

In vitro, it is used when an experimental design must occupy those three incretin-family receptors with one reference ligand, for example in transfected-receptor assays that record second-messenger readouts against single-receptor agonists. This listing describes receptor pharmacology in experimental systems only.

The material is offered as a lyophilized vial. PubChem identity for the full structure is pending lot documentation; use the certificate of analysis for mass and purity. Store lyophilized at −20 °C, protected from light, and handle under the receiving institution's chemical-hygiene plan.

Lots are sourced from a GMP-aligned peptide manufacturing partner and released against the stated HPLC purity for that lot (≥99% by HPLC, lot-specific). Identity, chromatographic purity, and related analytical results are documented on the lot certificate of analysis (COA). Retain the COA with the inventory record.

This listing is a research-use-only peptide offered to qualified Canadian institutions for in vitro and laboratory use. Purchasing access is limited to verified Canadian research institutions; individual consumer accounts are not accepted. It is not for human or veterinary use, is not intended for diagnostic procedures, and has not been evaluated or authorized by Health Canada as a drug, diagnostic, or medical product.

Material specifications

Fields a receiving desk can paste into an order record.

SKU
NL-RETA-5
Pack
5 mg lyophilized vial
Purity
≥99% by HPLC (lot-specific)
CAS
2381089-83-2
For research use only. Not for human or veterinary use.AOD-9604. For research use only. Not for human or veterinary use.98.9%COA

AOD-9604

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

Metabolic Research

$96.00

For research use only. Not for human or veterinary use.Tirzepatide. For research use only. Not for human or veterinary use.99.6%COA

Tirzepatide

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

Metabolic Research

$164.00

For research use only. Not for human or veterinary use.MOTS-c. For research use only. Not for human or veterinary use.99.1%COA

MOTS-c

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

Metabolic Research

$118.00

For research use only. Not for human or veterinary use.Semaglutide. For research use only. Not for human or veterinary use.99.5%COA

Semaglutide

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

Metabolic Research

$142.00

Common questions

No. Retatrutide is an investigational compound with no marketing authorisation in Canada or the United States. It has completed Phase 2 trials in obesity and type 2 diabetes and Phase 3 results have begun to appear in the literature, but approval is a separate step that has not occurred.
Tirzepatide engages two receptors, GIP and GLP-1. Retatrutide adds a third, the glucagon receptor. That third arm is associated in the literature with increased energy expenditure and hepatic lipid oxidation, but it also raises hepatic glucose output, so the balance between the three receptor activities is the central design question.
Jastreboff and colleagues reported in the New England Journal of Medicine (2023) a mean body-weight reduction of roughly 24% at 48 weeks in the highest-dose group. Body weight was still falling at the end of the trial, so the figure represents where the curve had reached at 48 weeks rather than a plateau.
TRIUMPH is the registrational Phase 3 programme for retatrutide, described in a 2026 design paper by Giblin and colleagues. It covers obesity, obstructive sleep apnea and knee osteoarthritis - extending the endpoints beyond weight change into obesity-associated conditions with independent outcome measures.
Not in the published literature. Unlike semaglutide, which has dedicated cardiovascular outcome trials, retatrutide has no comparable published result. This is a meaningful gap given that glucagon receptor agonism has haemodynamic effects and incretin agents are consistently associated with modest heart-rate increases in trials.
Retatrutide carries CAS 2381089-83-2, but PubChem does not resolve it by name, so no public CID is available. Identity for supplied reference material therefore depends on lot-specific analytical data rather than on a public structural record.