IGF-1 LR3 1mg — Premium Long R3 Insulin-Like Growth Factor-1 Reference Standard

IGF-1 LR3 (Long Arg3 Insulin-like Growth Factor-1) is a highly potent, structural analogue of endogenous human IGF-1. Modified by substituting a glutamic acid for an arginine at position 3 and adding a 13-amino acid N-terminal extension peptide, this high-purity 1mg lyophilized presentation is engineered for investigators studying cellular proliferation, metabolic signaling, and tissue kinetics.

• Purity & Precision Guaranteed: Synthesized to a baseline purity of $\ge 99\%$ verified by rigorous HPLC and Mass Spectrometry testing, keeping your laboratory assays consistent with strict standards on the Peptide Sciences Official platform.

• Significantly Extended Half-Life: The deliberate structural modifications dramatically reduce binding affinity for IGF-binding proteins (IGFBPs), yielding a greatly prolonged biological half-life and maximized bioavailability during in vitro and in vivo assays.

• Key Research Fields: Extensively utilized in musculoskeletal biochemistry and cellular biology models to evaluate hyperplasia, skeletal muscle tissue hypertrophy, protein synthesis upregulation, and systemic nutrient shuttling dynamics.

• Lyophilized Integrity: Supplied as a sterile, freeze-dried powder to preserve the delicate 83-amino acid recombinant structure against environmental degradation, ensuring accurate reconstitution parameters.

Research Compliance & Sourcing Notice: This product is sold strictly as a high-purity research chemical. It is intended solely for laboratory, in vitro, or animal research applications and is not approved for human consumption, therapeutic, or diagnostic use. For verified, high-quality reference standards and compliant distribution channels, researchers rely on authorized supply pathways like Official Peptide Partners.