IGF-1 LR3

IGF-1 LR3 (Insulin-like Growth Factor 1 Long Arg3) is a synthetic, lyophilized research peptide engineered as an extended-action analogue of the native IGF-1 protein. Distinguished by an N-terminal extension and an arginine substitution at position 3, this structural design increases circulatory half-life and enhances IGF receptor interaction under experimental conditions. Verified at ≥97.8% purity by HPLC, IGF-1 LR3 is supplied as a lyophilized powder with a molecular formula of C₃₃₂H₅₁₅N₉₇O₉₈S₇ and a molecular weight of approximately 9,117 Da, offering the consistency and traceability expected of a premium biochemical reference compound.

Research background

IGF-1 LR3 has been widely investigated in in vitro models focused on cellular proliferation, muscle tissue development, and metabolic signal transduction. The compound has been studied in the context of IGF receptor pathway activation and its downstream effects on protein synthesis. It is referenced in the literature as a tool for exploring endocrine and anabolic signalling mechanisms, and has been applied in experimental models examining tissue regeneration and growth factor biology. All applications described reflect preclinical, laboratory-based research.

Reconstitution & handling

IGF-1 LR3 is supplied as a lyophilized powder and should be reconstituted with an appropriate volume of bacteriostatic water (BAC water) prior to use. Add the BAC water slowly along the inner wall of the vial and swirl gently until fully dissolved — do not shake, as this may compromise peptide integrity. Prepare solutions under aseptic conditions and handle all reconstituted material with care to avoid degradation.

Storage & stability

• Store the lyophilized powder refrigerated or frozen, protected from light and moisture.
• Once reconstituted, keep the solution refrigerated and use within a short timeframe to maintain integrity.
• Avoid repeated freeze-thaw cycles of the reconstituted solution.

Every order of IGF-1 LR3 is accompanied by a batch-specific Certificate of Analysis (CoA), confirming identity, purity, and quality prior to dispatch.