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Retatrutide
Retatrutide (LY3437943) is a single, modified peptide under clinical development by Eli Lilly. It activates the GIP, GLP-1, and glucagon receptors and is not FDA approved. This 10 mg listing is presented strictly for laboratory research use.
Scientific referenceAvailableLot data pending
Objective technical summary
A long-acting triple hormone-receptor agonist with activity at the glucose-dependent insulinotropic polypeptide, glucagon-like peptide-1, and glucagon receptors. Phase 3 clinical development is ongoing; this record does not represent an approved or commercially available drug product.
Catalog numberMOLT–RETA–REF
CAS number2381089-83-2
Molecular formulaC₂₂₁H₃₄₂N₄₆O₆₈
Molecular weight4731 g/mol
Amino-acid sequenceY–Aib–QGTFTSDYSI–αMeLeu–LDK(γGlu–AEEA–C20 diacid)KAQ–Aib–AFIEYLLEGGPSSGAPPPS–NH₂
Form10 mg research-use vial
Purity statusLot-specific result — see the selected batch record
Purity methodReported on the lot-specific analytical record
Identity methodReported on the lot-specific analytical record
Regulatory statusInvestigational; not FDA approved. FDA states that retatrutide cannot be used in compounding under federal law.
StorageNo product-specific storage specification is attached. Use only the approved SDS and supplier documentation for the exact material and salt form.
Primary scientific and regulatory references
NIH NCATS GSRS identity record ↗FDA — concerns with unapproved GLP-1 drugs ↗Phase 2 trial record (PubMed) ↗
Scientific record reviewed 2026-07-13.
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