IGF-1 LR3 (1mg/100mcg)
IGF-1 LR3 — Long-R3 IGF-1 Analog Research
Order IGF-1 LR3 (1mg/100mcg) online for laboratory research. Compare the listed vial options and current price, then add your selection to cart and continue to checkout. Review available COA records for the exact product, strength and lot. Research Use Only; not for human or veterinary use.
IGF-1 LR3 (Receptor Grade) is listed for growth factors laboratory research. Catalog vial contents are 1mg / 100mcg; select the required strength before ordering. This material is supplied for Research Use Only, not as a medicine or a product for human or veterinary use.
Research Applications & Benefits
- Long-R3 construct research
- IGF-receptor signaling assays
- Binding-protein interaction studies
What is IGF-1 LR3 (Receptor Grade)?
IGF-1 LR3 is the catalog name for a long-R3 analog of insulin-like growth factor 1. The named research construct is commonly described as an 83-amino-acid IGF-1 analog with an N-terminal extension and an arginine substitution at position 3. This catalog lists 100mcg and 1mg research vials.
Listed vial contents: 1mg / 100mcg. These are supplied quantities, not administration doses. Current pricing and availability are shown in the strength selector.
Which identity should I verify?
Confirm the intended 83-amino-acid long-R3 IGF-1 construct with a supplier specification, then match the observed intact mass and chromatogram to the same lot. The product label and vial amount identify the marketed item, not its analytical identity.
What mechanisms are being studied?
Researchers use long-R3 IGF-1 analogs to study IGF-receptor signaling under conditions where interactions with insulin-like-growth-factor-binding proteins differ from native IGF-1. Results depend on the exact construct, model and assay, so the catalog name cannot substitute for sequence and mass confirmation.
What are the research questions?
- IGF-receptor signaling in defined cell systems
- How reduced binding-protein interactions alter experimental responses
- Comparisons with native IGF-1 and Des(1-3) IGF-1
What does the published work describe?
Published animal work with long-R3 IGF-I reported organ-growth and circulating IGF-system measurements in guinea pigs. That study concerns its named experimental material; it does not establish a universal half-life, potency multiplier or outcome for this catalog vial.
Experimental models in the cited papers
- Guinea pig: long-R3 IGF-I infusion and IGF-system measurements
What could future research explore?
Direct analytical comparison of the supplied material with a stated long-R3 reference standard could establish whether the intended sequence and intact mass are present. Functional studies could then compare it with native IGF-1 and Des(1-3) IGF-1 under matched conditions.
These are research directions, not established applications of the product sold here.
What are the limits of this evidence?
The cited study does not verify this vial's sequence, intact mass, quantity, purity, sterility, effectiveness or safety. No clinical benefit is established. Fixed pharmacokinetic or potency claims are not presented because they are not supported for this inventory.
Study references
- Tomas FM, et al. Long R3 insulin-like growth factor-I (IGF-I) infusion stimulates organ growth but reduces plasma IGF-I, IGF-II and IGF binding protein concentrations in the guinea pig. J Endocrinol. 1995. PMID 7561636
How should I check lot documentation?
Match the product, strength and lot to an original analysis document. Literature describes experimental findings; it does not verify the contents of this inventory. A report is evidence only for the product, strength and lot it names.
How is IGF-1 LR3 (Receptor Grade) handled in the lab?
For IGF-1 LR3 (Receptor Grade), record the product code IGF1LR3, selected strength and lot before opening. Follow the material-specific safety data sheet and laboratory SOP, with appropriate gloves, eye protection and containment. For a documented dry preparation, let the sealed vial equilibrate before opening to reduce condensation; minimize time open and use clean, compatible vessels.
For IGF-1 LR3 (Receptor Grade), establish the supplied preparation or construct, formulation and activity documentation before dilution. Protein folding, aggregation, adsorption and excipient compatibility can affect assays. Evaluate compatible vessels and buffer conditions in a small study; do not add a carrier protein unless it is appropriate for the assay and documented in the SOP.
For IGF-1 LR3 (Receptor Grade), calculate mass concentration as measured material mass divided by final solution volume. Calculate molarity only with a documented molecular weight for the supplied chemical form; no usable molecular weight is established by the blank catalog field. Where available, use matched-lot net content rather than treating chromatographic purity as a mass correction. Record both stock concentration and subsequent dilution factors.
Use the documented storage conditions for the supplied IGF-1 LR3 (Receptor Grade) form and lot. For a documented lyophilized preparation, keep the vial sealed and protected from moisture; for solutions, validate temperature, light exposure and holding time in the assay. Use compatible single-use aliquots when appropriate to reduce repeated freeze-thaw. No universal temperature or 28-day solution shelf life is established by the catalog name.
A IGF-1 LR3 (Receptor Grade) laboratory protocol should record identity, product code IGF1LR3, strength, lot, applicable analysis results, solvent and pH, stock concentration, dilution sequence, vessel type, storage history and assay endpoints. Include vehicle and reference controls, independent replicates and predefined acceptance criteria. Separate handling validation from biological interpretation; these notes do not provide administration or dosing instructions.
Research Use Only. Not for human consumption, therapeutic, veterinary or any in-vivo use.
Product Specifications
- Compound
- IGF-1 LR3 (Receptor Grade)
- CAS Number
- 946870-92-4
- Molecular Weight
- HPLC Purity Specification
- ≥98%
- Category
- Growth Factors
- Starting Price
- $89.00 USD
- Country of Origin
- United States
- Shipping
- Cold-chain insulated packaging, fast domestic delivery
- Payment
- Card, ACH, and cryptocurrency (10% discount)
Quality & Verification
IGF-1 LR3 (Receptor Grade) has a catalog purity specification of ≥98%; this is not a measured result for every vial. Match the product, exact strength, batch and lot to its analysis record and read only the reported fields. HPLC peak-area purity, measured content and endotoxin are separate measurements. A blank field means no result is reported, not zero or passed. A purity percentage alone does not establish identity, sterility or suitability for human use.
Frequently Asked Questions
What is IGF-1 LR3 (Receptor Grade)?
IGF-1 LR3 (Receptor Grade) is listed for growth factors laboratory research. Catalog vial contents are 1mg / 100mcg; select the required strength before ordering. This material is supplied for Research Use Only, not as a medicine or a product for human or veterinary use.
What strengths of IGF-1 LR3 (Receptor Grade) are available?
The catalog lists 1mg / 100mcg. These labels describe vial contents, not administration doses. Select the required strength for current pricing and availability; match analysis records to that exact strength and lot.
How should I interpret IGF-1 LR3 (Receptor Grade) purity results?
IGF-1 LR3 (Receptor Grade) has a catalog purity specification of ≥98%; this is not a measured result for every vial. Match the product, exact strength, batch and lot to its analysis record and read only the reported fields. HPLC peak-area purity, measured content and endotoxin are separate measurements. A blank field means no result is reported, not zero or passed. A purity percentage alone does not establish identity, sterility or suitability for human use.
How should IGF-1 LR3 (Receptor Grade) be handled in the laboratory?
For IGF-1 LR3 (Receptor Grade), record the product code IGF1LR3, selected strength and lot before opening. Follow the material-specific safety data sheet and laboratory SOP, with appropriate gloves, eye protection and containment. For a documented dry preparation, let the sealed vial equilibrate before opening to reduce condensation; minimize time open and use clean, compatible vessels.
How do I choose a laboratory solvent for IGF-1 LR3 (Receptor Grade)?
For IGF-1 LR3 (Receptor Grade), establish the supplied preparation or construct, formulation and activity documentation before dilution. Protein folding, aggregation, adsorption and excipient compatibility can affect assays. Evaluate compatible vessels and buffer conditions in a small study; do not add a carrier protein unless it is appropriate for the assay and documented in the SOP.
How do I calculate a IGF-1 LR3 (Receptor Grade) stock concentration?
For IGF-1 LR3 (Receptor Grade), calculate mass concentration as measured material mass divided by final solution volume. Calculate molarity only with a documented molecular weight for the supplied chemical form; no usable molecular weight is established by the blank catalog field. Where available, use matched-lot net content rather than treating chromatographic purity as a mass correction. Record both stock concentration and subsequent dilution factors.
How should IGF-1 LR3 (Receptor Grade) be stored after preparation?
Use the documented storage conditions for the supplied IGF-1 LR3 (Receptor Grade) form and lot. For a documented lyophilized preparation, keep the vial sealed and protected from moisture; for solutions, validate temperature, light exposure and holding time in the assay. Use compatible single-use aliquots when appropriate to reduce repeated freeze-thaw. No universal temperature or 28-day solution shelf life is established by the catalog name.
What should a IGF-1 LR3 (Receptor Grade) lab protocol document?
A IGF-1 LR3 (Receptor Grade) laboratory protocol should record identity, product code IGF1LR3, strength, lot, applicable analysis results, solvent and pH, stock concentration, dilution sequence, vessel type, storage history and assay endpoints. Include vehicle and reference controls, independent replicates and predefined acceptance criteria. Separate handling validation from biological interpretation; these notes do not provide administration or dosing instructions.
Does Fmoc or Boc synthesis explain this IGF-1 LR3 (Receptor Grade) product?
The catalog name IGF-1 LR3 (Receptor Grade) alone does not establish a synthetic, recombinant or preparation-specific production route. Confirm construct or preparation documentation and relevant analytical or activity methods before drawing conclusions from a peptide synthesis guide.
Is IGF-1 LR3 (Receptor Grade) for human use?
No. IGF-1 LR3 (Receptor Grade) is strictly Research Use Only. It is not intended for human or veterinary use, diagnosis or treatment. Laboratory handling guidance is not an administration protocol.
Research Use Only. This product is intended for licensed laboratory research and is not for human or veterinary use.
