IGF-1 LR3 (1mg)
IGF-1 LR3 is an 83-residue analogue of insulin-like growth factor 1 carrying an arginine substitution at position 3 and a 13-residue N-terminal extension. Both modifications reduce binding to IGF binding proteins, so more of the peptide stays free in culture media.
- Purity
- Exceeds 99% (HPLC/MS)
- Form
- Lyophilized powder
- Presentation
- 1mg vial
- Availability
- In stock
Sold for research, laboratory, or analytical purposes only. Not for human consumption.
About IGF-1 LR3 (1mg)
At 83 residues it is a recombinant protein rather than a synthesised peptide, so it is more sensitive to freeze-thaw cycling than the rest of the catalogue.
Like everything in the Peptides range, this vial is lyophilized, sealed, and accompanied by third-party purity documentation for its batch.
Research applications
IGF-1 LR3 (1mg) appears in the following research contexts. These are descriptions of published laboratory work, not instructions for use:
- IGF-1 receptor signalling assays
- Cell culture growth supplementation
- IGFBP binding-affinity studies
Product specification
- Product name
- IGF-1 LR3 (1mg)
- SKU
- CP-IGF-1-LR3
- Category
- Peptides
- Presentation
- 1mg lyophilized powder
- Purity
- Exceeds 99%, verified by HPLC/MS
- Testing
- Independent US laboratory, per batch
- Availability
- In stock
CAS number, molecular formula and sequence are published per batch on the certificate of analysis.
Handling, reconstitution and storage
Store the sealed vial of lyophilized IGF-1 LR3 at -20°C, protected from light. Allow it to reach room temperature before opening so that moisture does not condense onto the powder.
Reconstitute with bacteriostatic water directed down the inside wall of the vial rather than onto the cake, and swirl instead of shaking — mechanical agitation is the most common cause of degradation in peptide handling. Keep reconstituted solution at 2-8°C and validate its working life for your own assay conditions.
Frequently asked questions
- How is IGF-1 LR3 (1mg) supplied and stored?
- It ships as a lyophilized powder in a sealed vial. Store the lyophilized product at -20°C protected from light; once reconstituted with bacteriostatic water, keep it refrigerated at 2-8°C and use it within the window your protocol validates.
- Is a certificate of analysis available?
- Yes. Every batch is independently tested by a US laboratory and verified to exceed 99% purity by HPLC/MS. Request the COA for your batch number and we will send the report.
- How long does delivery take?
- Orders dispatch within two business days. Delivery is free within the USA on orders over $200.
- Can IGF-1 LR3 (1mg) be used in humans or animals?
- No. This product is sold strictly for research, laboratory and analytical purposes. Human and animal consumption is prohibited.