Modified protein / Material & research guide
IGF-1LR3
IGF-1 LR3 is a modified IGF-related polypeptide rather than native IGF-1.
Catalog specification — select for your inquirySelected: 0.1 mg × 10 vials
Nominal catalog options, not a live availability guarantee. Final supply is confirmed in the written quotation.
Material profile
About the material
IGF-1 LR3 is a modified IGF-related polypeptide rather than native IGF-1.
For IGF-1LR3, the useful starting point is the material identity—not the broad research category. Compare the complete name and supplied form with the reference used by your laboratory.
Request the complete LR3 sequence specification and identity method. Ask whether activity testing is available separately from chromatographic purity.
Scientific context
Research context
Changes in the analogue's sequence affect how it is identified and compared in research. Native IGF-1 literature alone does not validate an LR3 preparation.
IGF-1 LR3 does not promote growth in late-gestation growth-restricted fetal sheep.
American journal of physiology. Endocrinology and metabolism · 2025 · PMID 39679943
Read the named material, experimental model, controls and limitations in the original paper. This source is scientific background, not a certificate for the offered lot.
Read the primary publication ↗Attenuated glucose-stimulated insulin secretion during an acute IGF-1 LR3 infusion into fetal sheep does not persist in isolated islets.
Journal of developmental origins of health and disease · 2023 · PMID 37114757
Read the named material, experimental model, controls and limitations in the original paper. This source is scientific background, not a certificate for the offered lot.
Read the primary publication ↗For laboratory research use only. Not for human or veterinary use, diagnosis or therapeutic application. No administration or dosing protocol is provided.
Catalog & quotation
Specifications
| Catalog material | IGF-1LR3 |
|---|---|
| Material class | Modified protein |
| Listed options | 0.1 mg × 10 vials 1 mg × 10 vials |
| Identity / supplied form | Request the complete LR3 sequence specification and identity method. Ask whether activity testing is available separately from chromatographic purity. |
| Identity, purity and content | Request the method, acceptance specification and lot-specific results. Chromatographic purity and net material content are separate measurements. |
| Storage / stability | Follow the written instructions for the actual material and batch. No universal 24-month shelf life or solution stability is assumed. |
Evidence for the offered material
Documents
Confirm document availability for the actual material and lot. A catalog purity target or packaging label is not a released batch result.
Request the complete LR3 sequence specification and identity method. Ask whether activity testing is available separately from chromatographic purity.
Ask which tests and underlying files are available, what each result measures and which batch it covers. Do not infer a test result from an image or badge.
Match product name, selected specification, lot reference and packaging to the quotation. Ask about any difference before confirming supply.
Before you inquire
Questions
Does high purity establish IGF-1 LR3 biological activity?
Request the complete LR3 sequence specification and identity method. Ask whether activity testing is available separately from chromatographic purity.
What should my IGF-1LR3 inquiry include?
Include the exact material name, the catalog option or required specification, quantity, destination and any documents needed before quotation. Keep nominal amount per container separate from the number of containers.
Does the catalog image confirm the selected specification?
No. It is a catalog illustration. The image may show one variant while the selector lists other options. Use the written quotation and matching batch documents to confirm supply.
Does a paper or an existing report validate every future batch?
No. A paper describes its studied material and model. An analytical report describes a named sample. Confirm the connection between any report and the lot offered for your order.
Catalog content reviewed 26 September 2026. Listed options are from this site's product records. Scientific sources, where shown, describe research context, not batch certification.
Build your IGF-1LR3 inquiry.
Include the material, amount and evidence your laboratory needs to review.