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●Research use only — not for human or veterinary use
Also known as Long R3 IGF-1
A long-acting IGF-1 analogue studied in growth-factor signaling research, with reduced binding-protein affinity relative to native IGF-1. Supplied as a documented reference standard.
IGF-1 LR3 is a long-acting analogue of insulin-like growth factor 1, carrying an N-terminal extension and an arginine substitution that reduce its affinity for IGF-binding proteins. In research it is used as a stable tool for probing IGF-1 receptor signaling.
It is a single-chain polypeptide of ~9,111 g/mol — larger than most catalogue references — which influences both its production route and its analytical handling.
See the growth-factor signaling (IGF / MGF) overview. IGF-1 sits downstream of GH signaling, so IGF-1 LR3 is studied in relation to the secretagogue and GHRH references such as ipamorelin.
Supplied lyophilised; larger polypeptides are particularly sensitive to freeze-thaw, so aliquot carefully — see freeze-thaw degradation and lyophilised peptide stability.
Characterised by HPLC and mass spectrometry, documented per lot (see batch traceability).
References describe in-vitro and pre-clinical research only. Supplied as a research-use-only reference standard, not for human or veterinary use.
Store lyophilised at -20 °C; reconstituted material at 2–8 °C within the analytical window.
Reconstituted purity tracked by HPLC over the storage window.
Research use only — All products and content are intended strictly for in-vitro laboratory research and analytical use. Not for human or veterinary use, not for consumption, and not for any diagnostic or therapeutic purpose.