
IGF-1 LR3
A long-acting IGF-1 analog studied for IGF-1R signaling and cell proliferation.
Research Overview
IGF-1 LR3 is an 83-amino-acid analog of insulin-like growth factor 1, modified with an Arg substitution at position 3 and an N-terminal extension that reduces binding to IGF-binding proteins, prolonging its activity in research systems.
It is studied as an agonist of the IGF-1 receptor, activating PI3K/Akt and MAPK signaling associated with cell proliferation and protein synthesis in culture models.
Specifications
| Compound | IGF-1 LR3 (Long R3 IGF-1) |
| Classification | Endocrine research compound |
| Molecular weight | 9,117.7 g/mol |
| Sequence / Form | 83-aa Long Arg3 IGF-1 analog |
| Purity | ≥99% HPLC, identity verified by mass spectrometry |
| Documentation | Batch-specific Certificate of Analysis available |
| Appearance | White lyophilized powder |
| Storage | Store sealed at 2–8°C. Long-term storage per certificate guidance. |
| Use | Research Use Only. Not for human or veterinary use. |
Quality Documentation
Every released lot is supported by quality-control documentation. Certificate access is presented by compound and lot where available. Cold-chain shipping is available where required; inventory is held under refrigerated conditions at our fulfillment center with temperature-logging protocols in place.
Research Use Only
This product is offered strictly for laboratory research use. It is not a drug, food, cosmetic, supplement, or consumer product, and is not intended for human or veterinary use.



