IGF-LR3 1MG vial — After Hours Labs research product
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IGF-LR3 1MG

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IGF-LR3 1MG Research Overview

IGF-1 LR3 (Long R3 IGF-1) is an 83-amino-acid analog of insulin-like growth factor 1, engineered with an arginine substitution at position 3 and a 13-amino-acid N-terminal extension. IGF-LR3 1MG is supplied for qualified in-vitro laboratory research and analytical use only.

Compound profile

  • Compound class: Recombinant IGF-1 analog
  • Length: 83 amino acids (IGF-1 with an Arg³ substitution and a 13-residue N-terminal extension)
  • Molecular weight: ≈ 9111 g/mol
  • Form: Lyophilized powder in a sealed vial
  • Testing: Third-party HPLC purity and identity, batch-matched COA

Research context

These changes greatly reduce binding to IGF-binding proteins, so IGF-1 LR3 remains free to activate the IGF-1 receptor for longer than native IGF-1. It is a standard reagent in cell-culture and bioprocessing work and is studied in IGF-1R signaling, cell proliferation, differentiation and muscle-cell (myoblast) models.

Storage and handling

Store unopened lyophilized vials sealed and protected from light — at −20 °C for long-term storage, or 2–8 °C for short-term use. Once reconstituted, keep refrigerated at 2–8 °C, minimize freeze–thaw cycles and rely on your laboratory’s own validated stability data.

Quality and documentation

Every lot is third-party tested, and the Certificate of Analysis is matched to the exact batch you receive — look it up any time on the COA page. Browse more GH / IGF Axis Research, or see related compounds: CJC-1295 No DAC, IPA 10MG.

Research Use Only Notice: Not for human consumption, not for veterinary use, not for clinical or diagnostic use, and not intended as a drug, food, dietary supplement, cosmetic, or household product. Purchaser is responsible for confirming lawful use, handling requirements, and regulatory status before purchase or use.