Retatrutide
Retatrutide (LY3437943) is a research peptide raw material identified by CAS No. 2381089-83-2. It is supplied as a white to off-white powder, soluble in water, with a purity specification of ≥98.0% and peptide assay of ≥85.0%. Quality parameters include pH, water content, acetic acid, trifluoroacetic acid, sodium ion, residual solvents, related substances, bacterial endotoxin and microbial limits. For research use only.
Description
Retatrutide, also known by the development code LY3437943, is a research peptide associated with CAS No. 2381089-83-2. FDA GSRS lists Retatrutide and LY3437943 as synonyms for the same substance identity.
Retatrutide is being clinically investigated as a single-peptide agonist of the GIP, GLP-1 and glucagon receptors. As of August 2026, clinical development remains ongoing and Lilly continues to describe retatrutide as investigational.
The product is supplied as a white to off-white powder and is soluble in water. The current in-house specification includes a purity of ≥98.0%, peptide assay of ≥85.0% and a pH range of 6.0–9.0.
Additional controls include water content, acetic acid, trifluoroacetic acid, sodium ion, residual solvents, maximum single impurity, total impurities, bacterial endotoxin and microbial limits.
COA and relevant analytical quality documentation are available upon request.
For research use only. Not intended for human or veterinary use.
Product Description
- Application Field
- Suitable for peptide-related research, analytical testing, reference material studies, method development and other laboratory R&D applications. For research use only. Not intended for human or veterinary use. Regulatory requirements should be evaluated according to the intended application and target market.
- Packaging
- Packaging options are available according to order quantity. Please contact us for available pack sizes and customized packaging requirements.
- Storage Conditions
- Protect from light. Keep tightly sealed and store at -20°C ±5°C.
- Shelf Life
- 24 months under the recommended storage conditions. Please refer to the batch COA for the applicable expiration date.
Specifications
Test ItemSpecificationAppearanceWhite to off-white powderSolubilitySoluble in waterIdentificationConformspH6.0–9.0Water Content≤8.0%Acetic Acid≤0.5%Trifluoroacetic Acid≤0.5%Sodium Ion≤5.0%Methanol≤0.3%Dichloromethane≤0.06%Acetonitrile≤0.041%DMF≤0.088%Max. Single Impurity≤0.5%Total Impurities≤2.0%Purity≥98.0%Bacterial Endotoxin<10 EU/mgTotal Aerobic Microbial Count≤100 CFU/gAssay of Peptide≥85.0%
