For laboratory research use only · Not for human or veterinary use
For laboratory research use onlyNot for human or animal consumption

Lyophilized Peptides

Retatrutide Research Reference

LY3437943

A synthetic, lipidated peptide research reference characterized in the literature as an agonist of human GCGR, GLP-1R and GIPR.

CatalogGR-PW
ManufacturerRemetide
PurityTarget ≥99% by RP-HPLC; lot result controls
PackResearch pack · supplied amount shown on product record
Price range: $75.00 through $449.00 — o from El precio original era: $75.00.El precio actual es: $63.75. / mes Current catalog price; lot availability controls fulfillment.
AvailabilityIn stock
Suscríbete cada mes y ahorra 15%$63.75 por entrega. El mismo precio aplica al primer pedido y a las renovaciones.

86 lot COAs on this record

01Lot documentationCOA and analytical-record model
02Defined specificationMethod and result remain lot specific
03Tracked fulfillmentShipping method and lot allocation confirmed at order review
04Responsible useNon-clinical laboratory context

Lot documentation

Current Certificate of Analysis

86 approved certificates are attached to this product record.

Reported 2026-10-13Lot GR6-100826-199.92% purity · Sample 1: 8.11 mg; Sample 2: 7.92 mg
Open COA
Reported 2026-10-13Lot GR24-100826-199.79% purity · 28.81 mg
Open COA
Reported 2026-10-13Lot GR12-100826-199.88% purity · 18.13 mg
Open COA
View all historical COAs (83)
Reported 2026-10-13Lot GR12-100926-199.87% purity · 15.30 mg
Open COA
Reported 2026-09-29Lot GR30-092026-199.95% purity · 34.17 mg
Open COA
Reported 2026-09-17Lot GR24-092026-199.95% purity · 30.40 mg
Open COA
Reported 2026-09-17Lot GR12-092026-199.98% purity · 14.35 mg
Open COA
Reported 2026-08-04Lot GR12-082026-199.80% purity · 15.54 mg
Open COA
Reported 2026-08-04Lot GR12-082026-199.80% purity · 15.54 mg
Open COA
Reported 2026-07-28Lot GR24-082026-199.98% purity · 15.55 mg
Open COA
Reported 2026-07-28Lot GR24-082026-199.98% purity · 15.55 mg
Open COA
Reported 2026-07-28Lot GR24-082026-199.98% purity · Vial 1: 15.70 mg, Vial 2: 15.40 mg
Open COA
Reported 2026-06-07Lot GR06-062026-499.91% purity · 6.86 mg
Open COA
Reported 2026-06-07Lot GR06-062026-499.91% purity · 6.86 mg
Open COA
Reported 2026-05-14Lot GR48-052026-499.91% purity · 48.44 mg
Open COA
Reported 2026-05-14Lot GR48-052026-199.47% purity · 51.82 mg
Open COA
Reported 2026-05-14Lot GR48-052026-199.47% purity · 51.82 mg
Open COA
Reported 2026-05-14Lot GR24-052026-199.82% purity · 29.43 mg
Open COA
Reported 2026-05-14Lot GR48-052026-499.91% purity · 48.44 mg
Open COA
Reported 2026-05-14Lot GR12-052026-499.72% purity · 14.01 mg
Open COA
Reported 2026-05-14Lot GR12-052026-799.95% purity · 13.89 mg
Open COA
Reported 2026-05-14Lot GR12-052026-799.95% purity · 13.89 mg
Open COA
Reported 2026-05-14Lot GR24-052026-199.82% purity · 29.43 mg
Open COA
Reported 2026-05-14Lot GR12-052026-799.95% purity · 13.89 mg
Open COA
Reported 2026-05-14Lot GR12-052026-499.72% purity · 14.01 mg
Open COA
Reported 2026-05-08Lot GR12-052026-299.70% purity · 13.11 mg
Open COA
Reported 2026-05-08Lot GR12-052026-299.70% purity · 13.11 mg
Open COA
Reported 2026-04-22Lot GR24-042026-499.92% purity · 23.96 mg
Open COA
Reported 2026-04-22Lot GR24-042026-499.92% purity · 23.96 mg
Open COA
Reported 2026-04-22Lot GR24-042026-499.92% purity · 23.96 mg
Open COA
Reported 2026-04-19Lot Gr06-042026-199.98% purity · 8.22 mg
Open COA
Reported 2026-04-19Lot GR24-042026-199.99% purity · 31.69 mg
Open COA
Reported 2026-04-19Lot GR24-042026-199.99% purity · 31.69 mg
Open COA
Reported 2026-04-19Lot Gr06-042026-199.98% purity · 8.22 mg
Open COA
Reported 2026-04-19Lot GR24-042026-199.99% purity · 31.69 mg
Open COA
Reported 2026-03-24Lot GR12-032026-199.80% purity · 15.75 mg
Open COA
Reported 2026-03-24Lot GR12-032026-199.80% purity · 15.75 mg
Open COA
Reported 2026-03-24Lot GR12-032026-199.80% purity · 15.75 mg
Open COA
Reported 2026-03-24Lot GR12-032026-199.80% purity · 15.75 mg
Open COA
Reported 2026-03-12Lot GR12-032026-499.89% purity · 13.94 mg
Open COA
Reported 2026-03-12Lot GR12-032026-499.89% purity · 13.94 mg
Open COA
Reported 2026-02-05Lot GR12-02022026-J99.555% purity
Open COA
Reported 2026-02-05Lot GR12-02022026-J99.555% purity · 14.06 mg
Open COA
Reported 2026-01-21Lot GR12-0119202G-H99.845% purity
Open COA
Reported 2026-01-21Lot GR12-01192026-H99.845% purity · 11.89 mg
Open COA
Reported 2026-01-17Lot RETA240105202R99.954% purity
Open COA
Reported 2026-01-08Lot GB12-61062026-J99.477% purity
Open COA
Reported 2026-01-08Lot GR12-01062026-J99.979% purity
Open COA
Reported 2026-01-08Lot GR12-0106326-J99.907% purity
Open COA
Reported 2026-01-08Lot GR12-0106202G-J99.477% purity · 13.77 mg
Open COA
Reported 2026-01-07Lot RETA2601652026-R99.954% purity · 26.98 mg
Open COA
Reported 2025-12-24Lot GR24-12222025-J99.856% purity
Open COA
Reported 2025-12-24Lot RETA24121630225-1299.759% purity
Open COA
Reported 2025-12-24Lot GR48-1222025-J99.815% purity · 33.37 mg
Open COA
Reported 2025-12-24Lot RETA241216Z025-1299.759% purity · 26.06 mg
Open COA
Reported 2025-12-24Lot GR24-12220325-J99.856% purity · 25.59 mg
Open COA
Reported 2025-12-24Lot GR24-12222025-J99.856% purity · 25.59 mg
Open COA
Reported 2025-12-19Lot GIR10-12172025-H99.917% purity · 10.55 mg
Open COA
Reported 2025-12-17Lot RET06 1209262S-1299.093% purity
Open COA
Reported 2025-12-17Lot RET06 12092625-1299.093% purity · 6.34 mg
Open COA
Reported 2025-12-11Lot GR12-12082025-H99.949% purity · 15.59 mg
Open COA
Reported 2025-12-08Lot RET1211122025-2099.976% purity
Open COA
Reported 2025-12-08Lot RET12111220Z5-2099.976% purity · 13.89 mg
Open COA
Reported 2025-10-01Lot RET1209212025-1899.96% purity · 15.32 mg
Open COA
Reported 2025-09-25Lot GR24-092220S-199.896% purity · 28.04 mg
Open COA
Reported 2025-09-25Lot GR12-09222025-J99.908% purity · 17.48 mg
Open COA
Reported 2025-09-25Lot GR12-09222025-J99.908% purity · 17.48 mg
Open COA
Reported 2025-09-25Lot GR24-09222025-J99.896% purity · 28.04 mg
Open COA
Reported 2025-09-25Lot RET2409182025-1099.962% purity · 27.33 mg
Open COA
Reported 2025-09-25Lot GR12-09222025-J99.908% purity
Open COA
Reported 2025-09-25Lot GR24-09222025-J99.896% purity
Open COA
Reported 2025-08-08Lot GR2408062025-J-199.97% purity · 28.3 mg
Open COA
Reported 2025-08-08Lot GR0608062025-J99.97% purity · 5.22 mg
Open COA
Reported 2025-08-08Lot GR12080620253-199.96% purity · 15.30 mg
Open COA
Reported 2025-08-08Lot GR2408062025-J99.97% purity · 28.3 mg
Open COA
Reported 2025-08-08Lot GR0608062025-J99.97% purity · 8.22 mg
Open COA
Reported 2025-08-08Lot GR2408062025-J99.97% purity
Open COA
Reported 2025-08-08Lot GR1208062025-J99.96% purity
Open COA
Reported 2025-08-08Lot GR1208062025-J99.96% purity · 15.30 mg
Open COA
Reported 2025-08-06Lot RET12802202S-1699.93% purity · 12.72 mg
Open COA
Reported 2025-08-06Lot RET1208022025-1699.93% purity
Open COA
Reported 2025-08-06Lot RET1208022025-1699.93% purity · 12.72 mg
Open COA
Reported 2025-07-24Lot RET120721025-1599.84% purity · 13.28 mg
Open COA
Reported 2025-07-04Lot RETA24072025-N99.96% purity · 29.76 mg
Open COA
Reported 2025-06-14Lot N-RFT1206022025-1399.91% purity · 14.32 mg
Open COA
Reported 2025-06-14Lot N-RET2406112025-0699.92% purity · 29.49 mg
Open COA

Technical information

Chemical & material record

Presented in a scientific-catalog format so the material can be evaluated by identity, form and documentation before purchase.

Identity
Retatrutide research reference
Synonyms
LY3437943
CAS number
2381089-83-2
Molecular formula
C221H342N46O68
Formula weight
4,731.3 Da
Sequence / identity note
39-residue modified peptide; sequence controlled in the technical record
Manufacturer
Remetide
Manufacturing role
Custom peptide synthesis and manufacture
Form
Lyophilized, non-sterile research material
Purity specification
Target ≥99% by RP-HPLC; lot result controls
Storage
-20°C, dry and protected from light; follow lot documentation
Pack size
Research pack · supplied amount shown on product record
Catalog number
GR-PW

Research context

Published research & product context

Published literature is presented separately from lot-specific identity, purity and analytical results.

Retatrutide (LY3437943) is a 39-residue modified peptide studied as a triple agonist of the glucagon receptor (GCGR), glucagon-like peptide-1 receptor (GLP-1R) and glucose-dependent insulinotropic polypeptide receptor (GIPR). Published receptor studies used human receptor-expressing HEK293 systems to characterize cAMP signaling.

In those cellular assays, reported EC50 values were 5.79 nM at GCGR, 0.775 nM at GLP-1R and 0.0643 nM at GIPR. Separate non-clinical mouse studies evaluated glucose tolerance, gastric emptying and metabolic endpoints. These observations describe the cited studies, not a specification or expected result for this lot.

Selected published findings

  • Induced cAMP accumulation in HEK293 cells expressing human GCGR, GLP-1R or GIPR.
  • Was evaluated in mouse models for glucose-tolerance, gastric-emptying and diet-induced-obesity endpoints.
References and product citations 2
  1. Coskun, T., Urva, S., Roell, W.C., et al. LY3437943, a novel triple glucagon, GIP, and GLP-1 receptor agonist: from discovery to clinical proof of concept. Cell Metabolism 34(9), 1234–1247 (2022).
  2. Urva, S., O’Farrell, L., Du, Y., et al. The novel GIP, GLP-1 and glucagon receptor agonist retatrutide delays gastric emptying. Diabetes, Obesity and Metabolism 25(9), 2784–2788 (2023).

Literature interpretation: This summary describes published experimental literature and is not a lot specification, clinical claim, use instruction or representation that the supplied research material will reproduce a published result. This record intentionally excludes dosing, administration, clinical outcomes, patient eligibility and therapeutic comparisons.

Intended laboratory context

Illustrative applications

  • Analytical method development
  • Identity and retention-time comparison
  • Qualified receptor-assay research
  • Non-clinical laboratory investigation

Documentation package

Documentation

  • PDFIllustrative Certificate of AnalysisSample
  • PDFAnalytical summarySample
  • PDFMaterial handling statementSample
  • PDFProject-specific specificationSample
Responsible-use statement

Not offered for clinical, diagnostic, compounding, therapeutic, human or veterinary use. Current labeling, specification and lot documentation control.

Need a current record?

Documentation before decision-making.

Reference GR-PW and the applicable lot when contacting technical support. Published files support evaluation but do not replace the approved lot COA or material specification.

View documentation model