IGF-1 LR3
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- Batch Traceability: Lot Numbers, Records and Public Lookup
- How to Read a Peptide Certificate of Analysis (COA)
- Peptide Storage and Handling: Temperature, Light and Stability
Long R3 insulin-like growth factor-1 analog studied in extended-window IGF-1R, growth-signalling, and cellular-proliferation research models.
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Intended strictly for controlled laboratory receptor and pathway research.
What is IGF-1 LR3 (Long R3 IGF-1)?
IGF-1 LR3 is a modified analog of insulin-like growth factor-1 with a 13-amino-acid N-terminal extension and an arginine substitution at position 3. These changes reduce binding to IGF-binding proteins and extend the signalling window measured in controlled research models.
Laboratory work examines IGF-1 receptor activation, PI3K-AKT-mTOR and MAPK signalling, protein-synthesis markers, and cellular-proliferation or differentiation endpoints. These are experimental measurements, not medical or human-use claims.
LR3 is distinct from the shorter DES(1-3) variant. See also: IGF-1 DES for short-window and localized-signalling research →
IGF-1 LR3 COA lookup and verification
Each vial carries a batch identifier for checking the analytical documentation available for that material. The public lookup supports batch-level review, while the transparency page explains the identity, purity, and documentation framework. General verification information is not presented as a compound-specific result.
IGF-1 LR3 research material specifications
| Compound | Long R3 Insulin-like Growth Factor-1 (IGF-1 LR3) |
|---|---|
| Structure | 83-amino-acid modified IGF-1 analog with an N-terminal extension and Arg3 substitution |
| Class | Long-acting IGF-1 receptor agonist research analog |
| Purity specification | ≥99% |
| Physical form | Lyophilized powder in a sealed glass vial |
| Available vial sizes | 0.1mg and 1mg |
| Research distinction | Reduced IGFBP affinity and extended signalling window in laboratory models |
| Storage | Refrigerated, dry, and protected from light; follow batch documentation |
| Origin | Shipped domestically from the USA with tracked delivery |
| Intended scope | Controlled IGF-1R, growth-signalling, and cellular-pathway research only |
IGF-1 LR3 research questions
+What is IGF-1 LR3?
IGF-1 LR3, or Long R3 Insulin-like Growth Factor-1, is an 83-amino-acid modified IGF-1 analog. Its N-terminal extension and Arg3 substitution reduce binding to IGF-binding proteins, producing a longer signalling window in controlled laboratory models.
+How is IGF-1 LR3 different from native IGF-1?
Native IGF-1 is a 70-amino-acid growth factor with strong affinity for IGF-binding proteins. LR3 adds a 13-amino-acid N-terminal extension and replaces glutamate with arginine at position 3, changes studied for reduced IGFBP affinity and extended persistence in research systems.
+How does IGF-1 LR3 differ from IGF-1 DES?
LR3 is an extended 83-amino-acid analog studied for longer-duration IGF-1R signalling. IGF-1 DES(1-3) is a truncated 67-amino-acid variant studied in short-window and localized signalling models. They are separate research materials with distinct structural profiles.
+Which endpoints are measured in IGF-1 LR3 research?
Laboratory studies measure IGF-1 receptor activation, IGFBP interactions, PI3K-AKT-mTOR and MAPK pathway signals, protein-synthesis markers, and cellular-proliferation or differentiation endpoints in controlled models.
+How can an IGF-1 LR3 batch be checked?
Use the batch identifier printed on the vial in the COA lookup. The transparency page explains the identity, purity, and documentation standards used for research materials and distinguishes available batch records from general verification information.
+What purity specification applies to IGF-1 LR3?
The listed release specification is ≥99% purity. Researchers should confirm the result associated with received material using its batch identifier and the analytical documentation available for that batch.
+How should sealed IGF-1 LR3 be stored?
Keep the sealed lyophilized vial refrigerated, dry, and protected from light. Follow the storage information supplied with the batch for controlled laboratory handling and stability work.
Read the IGF-1 LR3 research
Long R3 IGF-1 research overview: structure, reduced IGFBP affinity, extended signalling, and controlled cellular-pathway endpoints.
Read article →IGF-1R binding, reduced IGFBP affinity, and downstream PI3K-AKT-mTOR and MAPK signalling in controlled LR3 research models.
Read article →Compare IGF-1 LR3 and IGF-1 DES by structure, IGFBP interaction, signalling window, and laboratory research endpoints.
Read article →Researcher Reviews
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