IGF-1 LR3 (Long R3 IGF-1) is een recombinant analoog van insuline-achtige groeifactor 1 met een arginine-substitutie op positie 3 en een toegevoegde N-terminale peptide-staart van 13 residuen. Deze modificaties verminderen de affiniteit voor IGFBP-eiwitten aanzienlijk en verlengen de halfwaardetijd. Wordt gebruikt in onderzoek naar celproliferatie, myogenese en de expressie van Akt/mTOR-signaalwegen. CAS 946870-92-4, MW 9117,6 Da, zuiverheid ≥98% volgens HPLC.
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Third-party laboratory Certificates of Analysis (COA) for every PEPTEX peptide
Why transparency matters
Research-grade peptides require verified identity and purity. An unverified vial is an unverified experiment.
A Certificate of Analysis (COA) is available on every product page.
Testing methodology
Identity confirmation by mass spectrometry, purity assay, appearance check, and moisture content. Reports issued by EU-based accredited laboratories.
Every PEPTEX product has an independent Certificate of Analysis available on its product page. All products meet or exceed ≥99% purity — no exceptions.
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Frequently asked questions
What does ≥99% purity mean?
It means that at least 99% of the powder is the target peptide.
How is the batch linked to the COA?
Every vial carries a batch number matching the COA.
Can I verify the COA independently?
Yes — each COA carries the issuing laboratory name and report ID.
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