IGF-1 LR3 1mg — Research Grade
IGF-1 LR3 is an 83-amino-acid analogue of insulin-like growth factor 1, carrying an arginine substitution at position 3 and a 13-residue N-terminal extension. Ascend Research supplies it as a lyophilised white powder in 1mg vials at ≥99% purity, dispatched from within Australia for laboratory research use only.
Specifications
| CAS Number | 946870-92-4 |
| Synonyms | Long R3 IGF-1, LR3 IGF-1 |
| Amino Acids | 83 |
| Modifications | Arg substitution at position 3; 13-residue N-terminal extension |
| Purity | ≥99% by RP-HPLC |
| Appearance | White lyophilised powder |
| Available Strength | 1mg per vial |
| Solubility | Sterile water or dilute acetic acid |
| Storage | 2–8°C, dry |
Research Context
IGF-1 LR3 is used in cell culture research as a modified IGF-1 analogue. The literature attributes its extended activity in culture media to reduced binding by IGF binding proteins, a consequence of its structural modifications. Note that at 83 residues it is substantially larger than the short peptides elsewhere in this catalogue, and vials are supplied at 1mg accordingly. Ascend Research supplies IGF-1 LR3 strictly as a laboratory reference material; no representation is made regarding any physiological outcome, and it is not supplied for use in humans or animals.
Handling and Reconstitution
Allow the vial to reach room temperature before opening. IGF-1 LR3 may be reconstituted with sterile water, though dilute acetic acid is often preferred for this class of larger peptide. Store the lyophilised powder dry at 2–8°C, refrigerate reconstituted material and use within 30 days. Avoid repeated freeze–thaw cycles.
What's Included
- One lyophilised vial (1mg)
- Protective packaging
Frequently Asked Questions
What does LR3 stand for?
Long R3 — "Long" for the 13-residue N-terminal extension, "R3" for the arginine substitution at position 3.
How many amino acids does IGF-1 LR3 contain?
83.
Why is the vial only 1mg?
IGF-1 LR3 is a much larger molecule than the short peptides in this catalogue and is used at correspondingly smaller scales.
What should IGF-1 LR3 be reconstituted with?
Sterile water or dilute acetic acid; the acidic diluent is often preferred for larger peptides. Ascend Research supplies 0.6% acetic acid separately.
How is IGF-1 LR3 stored?
Dry at 2–8°C. Refrigerate after reconstitution and use within 30 days.
Where does Ascend Research ship from?
Orders are dispatched from within Australia.
Important Notice
Supplied for laboratory research use only. Not for human or veterinary use, self-administration, clinical, diagnostic, or therapeutic application. This product is not a cosmetic, drug, or food product. The purchaser is responsible for compliance with all applicable regulations. By purchasing, you confirm that you are a qualified researcher or are acting on behalf of a research institution.
Supplied for laboratory research purposes only. Not approved for human or veterinary use, self-administration, or therapeutic application. Handle in accordance with applicable research regulations.