IGF-1 LR3 (Long Arg3 Insulin-like Growth Factor-1) is a synthetic 83-amino-acid analog of IGF-1 with a 13-amino-acid N-terminal extension and Arg3 substitution. These modifications dramatically reduce binding to IGF-binding proteins, extending the bioactive half-life from approximately 10 minutes to 20-30 hours. Researched for studies of cell proliferation, muscle hypertrophy, and tissue regeneration.
Molecular Formula: C400H625N111O115S9
Molecular Weight: 9117.6 Da
Storage: Lyophilized at -20°C long-term, 2-8°C short-term. Reconstituted: refrigerate and use within 30 days.
Purity: ≥99% HPLC. Third-party COA included. Research use only.
