Research use only. All compounds are for in vitro laboratory research. Not for human consumption. Not FDA approved.
IGF-1 LR3 Long R3 insulin-like growth factor vial
HPLC Verified
>99% Purity
COA Included
Cellular Signaling Peptides

IGF-1 LR3

$99.99
IGF-1 LR3 — long-acting IGF-1 analogue with extended half-life studied for IGF-1 receptor activation and cell proliferation signaling. >99% HPLC purity. Research use only.
Format Lyophilized powder
Purity >99% HPLC verified
Storage Lyophilized: -20°C
CAS Number
Select Size
In Stock — 2–5 day domestic delivery
HPLC Verified
>99% Purity
📄 COA Included
For Research Use Only (RUO)
Not for human consumption. Not intended to diagnose, treat, cure, or prevent any disease. For in vitro and laboratory research purposes only.

Product Information

IGF-1 LR3 (Long R3 IGF-1) — Research Overview

IGF-1 LR3 is a long-acting analogue of insulin-like growth factor 1 with an N-terminal extension that reduces binding protein affinity and extends half-life. Researchers looking to buy IGF-1 LR3 for research will find Official Peptides supplies >99% HPLC-verified purity with batch-specific COA.

Molecular Profile

  • Molecular Weight: 9,117.5 g/mol
  • Modification: N-terminal 13-amino acid extension + Arg3 substitution
  • Purity: >99% HPLC verified (third-party)
  • Storage: -20C lyophilized, 4C reconstituted (use within 7 days)

Research Applications

IGF-1 LR3 has been studied in IGF-1 receptor activation models, cell proliferation pathway research, and muscle tissue biology investigations. Ships to USA and Australia.

For Research Use Only. IGF-1 LR3 is not approved for human use and is intended strictly for in vitro laboratory research.

For Research Use Only. This compound is intended strictly for in vitro laboratory research by qualified scientists. Not for human consumption. Not FDA approved. Keep out of reach of children.

Third-Party Verified

Every Order Ships with a Certificate of Analysis

We don't just claim purity — we prove it. Every batch of IGF-1 LR3 is independently tested by an accredited third-party laboratory before it reaches you. Your COA is linked to your specific lot number.

HPLC purity analysis — minimum threshold >99%
Mass spectrometry — molecular weight confirmation
Lot number traceable to your order
Endotoxin limits verified — safe for cell-based assays
View Sample COA & Testing Process
Official Peptides Labs Certificate of Analysis
ProductIGF-1 LR3
Lot #OP-2025-3956
HPLC Purity>99.0%99.2%PASS
Mass Spec (MW)ConfirmedConfirmedPASS
Endotoxin<1 EU/mg<0.5 EU/mgPASS

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