IGF-1 LR3, or Long R3 IGF-1, is an 83 amino acid analogue of human insulin-like growth factor 1. It carries an arginine substitution at position 3 and a thirteen residue N-terminal extension. Both modifications lower its affinity for IGF binding proteins, which is why this analogue is widely used in cell culture and growth signalling research.
Cellular series
IGF-1 LR3 1mg
A modified 83 amino acid analogue of insulin-like growth factor 1 with reduced binding protein affinity. 99%+ purity, U.S. lab tested.
99%+ PURITYAH-IGF1LR3-1In stock
$69.99
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1
Certificate ships with the vial — lot-matched COA, chromatogram, handling sheet.
Ships as lyophilised powder — stable at ambient temperature in transit.
Processed in 1–2 business days — then FedEx 2Day, tracked to your door.
Specification
Written On The Vial.
| MOLECULAR FORMULA | C400H625N111O115S9 |
|---|---|
| MOLECULAR WEIGHT | 9117.6 g/mol |
| CAS NUMBER | 946870-92-4 |
| PRESENTATION | Lyophilized powder, sealed vial |
| STORAGE | -20 °C sealed · 2-8 °C reconstituted |
| SOLUBILITY | Bacteriostatic water |
Certificate of analysisIGF-1 LR3 1mg 1MGLot AH-IGF-01Open PDF
Certificate of analysis
This Vial, This Lot.
This certificate belongs to the batch currently shipping. Every figure was measured by ILS Laboratories, not copied from a specification sheet.
AH-IGF-01
14 October 2026
1MG
99.92%
Handling
Three Steps, No Guesswork.
Bring to room temperature
Let the sealed vial stand for 20 minutes out of cold storage before the stopper is pierced. No heat, no water bath.
Add diluent down the wall
Introduce bacteriostatic water slowly against the glass - never directly onto the cake - then swirl until clear. Do not shake.
Refrigerate and log
Hold in solution at 2-8 °C, protected from light, and record the date on the handling sheet supplied with the lot.
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