Research-grade specs Sequence length: 83 amino acids Class: IGF-1 analog (Long Arg3 variant) Modification: Arg substitution at position 3 + 13-amino-acid N-terminal extension Half-life: ~2030 hours reported in published literature (vs ~10 minutes for native IGF-1) Mechanism studied: IGF-1R binding, reduced IGFBP affinity Studied applications IGF-1 signalling and IGF-1R receptor research IGFBP interaction and binding-affinity studies Protein folding, disulfide structure and conformational analysis Comparative insulin / IGF-1 receptor research Quality & trust 99% HPLC purity, third-party tested Mass spectrometry identity confirmation LAL endotoxin testing on every batch Batch-specific Certificate of Analysis included cGMP manufactured in Dallas, Texas (USA) USA same-day shipping (orders before 2pm CT M-F) Free domestic shipping on orders over $200 Storage & handling Store lyophilized vials refrigerated at 28C, protected from light and heat Reconstitute with bacteriostatic water

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