Retatrutide Research Peptide – 10 mg to 50 mg
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Retatrutide (LY3437943) Research Peptide
BulkGLP supplies Retatrutide (LY3437943) as a lyophilized peptide for analytical, in vitro, and laboratory research. Available options include 10 mg, 12 mg, 15 mg, 20 mg, 30 mg, and 50 mg vials, with single-vial and 10-pack configurations. Standard and mannitol-free formulations are offered where shown in the variation selector.
Each order is matched to the selected fill quantity and formulation. Review the active-lot documentation displayed on this page before ordering, because test scope, reported purity, and formulation details may vary by lot.
Product Overview
Retatrutide, also known by the research code LY3437943, is a synthetic peptide investigated for agonist activity at three receptors: the glucagon-like peptide-1 receptor (GLP-1R), glucose-dependent insulinotropic polypeptide receptor (GIPR), and glucagon receptor (GCGR). Its combined GLP-1R/GIPR/GCGR profile makes it relevant to receptor-binding, pathway-signaling, and comparative incretin-research models.
The third target is the glucagon receptor, GCGR. Product documentation and visible page copy should use GLP-1R, GIPR, and GCGR when describing the receptor profile.
Available Formats
- Physical form: Lyophilized peptide in a research vial
- Fill quantities: 10 mg, 12 mg, 15 mg, 20 mg, 30 mg, and 50 mg
- Pack sizes: Single vials and selected 10-pack options
- Formulations: Standard or mannitol-free where listed
- Fulfillment: Shipped from U.S. inventory
Inventory, pack size, and formulation availability can change by production lot. Use the product options on this page to confirm the configuration currently available.
Batch Documentation and Testing
BulkGLP publishes available batch documentation for the active lot so researchers can review the records associated with the material being offered. Depending on the lot, the posted documents may include:
- HPLC purity analysis
- Mass-spectrometry identity confirmation
- Fentanyl screening
- Endotoxin testing
- Microbial analysis by PCR
The active-lot report is the controlling record. A purity value or test result should only be attributed to a vial when that value appears in the documentation for the selected lot. Testing published for one lot should not be assumed to apply to another.
Reference Specifications
| Compound name | Retatrutide |
|---|---|
| Research code | LY3437943 |
| Receptor profile | GLP-1R, GIPR, and GCGR agonist |
| CAS Registry Number | 2381089-83-2 |
| Molecular formula | C221H342N46O68 |
| Molecular weight | Approximately 4,731.36 g/mol |
| Supplied form | Lyophilized research material |
| Intended use | Analytical, in vitro, and laboratory research only |
Research Applications
Retatrutide may be used in appropriately designed laboratory workflows involving:
- GLP-1R, GIPR, and GCGR receptor-activation assays
- Receptor-binding and selectivity studies
- cAMP and downstream signaling investigations
- Comparative single-, dual-, and triple-agonist research
- Analytical method development and compound-identification work
Researchers are responsible for selecting suitable controls, validating methods, and determining whether a specific lot and formulation are appropriate for their experimental design.
Storage and Laboratory Handling
Keep unopened material sealed, dry, and protected from direct light. Follow the storage conditions stated on the product label and active-lot documentation. Avoid unnecessary temperature excursions during storage and transport.
Preparation method, solvent compatibility, working concentration, container selection, and post-preparation stability depend on the formulation and the research protocol. These parameters should be established by the purchasing laboratory through a validated standard operating procedure. No universal reconstitution ratio or shelf-life claim is made on this page.
Ordering Retatrutide Research Vials
Select the required fill quantity, formulation, and pack size from the options above. Before completing an order, confirm the active lot, available testing, and formulation shown for that variation. Laboratories requiring a larger quantity or a lot-consistent 10-pack can contact BulkGLP to confirm current inventory before purchase.
Frequently Asked Questions
What receptors are associated with Retatrutide?
Retatrutide is investigated as an agonist at GLP-1R, GIPR, and GCGR. GCGR—the glucagon receptor—is the third receptor in its triple-agonist profile.
Which vial sizes are available?
Current options may include 10 mg, 12 mg, 15 mg, 20 mg, 30 mg, and 50 mg vials. Single-vial and selected 10-pack configurations are listed in the variation selector.
What does mannitol-free mean?
Mannitol-free identifies a formulation option that does not use mannitol as a bulking agent. It is a formulation distinction, not a separate purity grade. Confirm the selected formulation and its batch documentation before ordering.
Is batch documentation available?
Yes. Available documentation for the active lot is displayed on this product page. Because the testing scope can vary, use the records associated with the selected lot rather than relying on documentation from a previous lot.
Is this product intended for human or veterinary use?
No. This material is supplied strictly for research use and is not intended for human or veterinary use or consumption.
| Weight | 0.1 lbs |
|---|---|
| Dimensions | 2 × 2 × 2 in |
| Size | 5mg, 10mg, 12mg, 15mg, 20mg, 30mg, 50mg, 5mg – 10 Pack, 10mg – 10 Pack, 15mg – 10 Pack, 20mg – 10 Pack, 30mg – 10 Pack |
| Formulation | Standard (Default), Mannitol Free |














