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For Laboratory & Research Use Only — Not for Human or Veterinary Use
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IGF-1 LR3

Third-Party Tested · COA Available
IGF-1 LR3: long-arginine-3 IGF-1 analog for laboratory research. Third-party tested, 99%+ purity, COA available. Sizes: 1 mg.
$85.00 / 1 mg · USD
Volume pricingApplied automatically at checkout
QuantityPer unitYou save
3–4 units$79.057%
5–9 units$75.6511%
10+ units$71.4016%
Add 2 more to save 7% on every unit.
1
SKU IGF-1-LR3-1MG
The Purity GuaranteeVerified ≥99% by HPLC & mass spectrometry, third-party tested, with a lot-matched Certificate of Analysis on every vial.
  • Certificate of Analysis available for every lot
  • ≥99% purity, HPLC & mass-spec verified
  • Ships from a U.S. facility — same-day before 2PM EST
  • Secure checkout · Free shipping on orders $300+

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Lyophilized peptides need bacteriostatic water and a syringe to reconstitute. Add the essentials in one click.

IGF-1 LR3IGF-1 LR3In your order
Total for 3 items$123.00

IGF-1 LR3 is a modified insulin-like growth factor 1 with a 13-amino-acid extension and an arginine substitution at position 3. The modifications reduce binding to IGF-binding proteins, which extends its active half-life in research models.

Common research applications include:

  • Cell proliferation and growth-factor research
  • Muscle-cell culture studies
  • IGF signaling pathway research

Specifications

  • Class: Long-arginine-3 IGF-1 analog
  • Form: lyophilized powder in a sealed glass vial
  • Available sizes: 1 mg
  • Purity: verified at 99% or higher by HPLC, identity confirmed by mass spectrometry
  • Testing: every lot is third-party tested, with a lot-matched Certificate of Analysis available on request
  • Manufactured in the USA
  • Storage: keep sealed, cool, dry and away from light; refrigerate after reconstitution

For laboratory research use only. This product is not for human or veterinary use, is not a drug, food or cosmetic, and is not intended to diagnose, treat, cure or prevent any disease.

Purity≥99% by HPLC · COA available
CAS Number946870-92-4
Molecular FormulaC400H625N111O115S9
Molecular Weight9117.60
Amino Acid Count83
Sequence83-residue recombinant IGF-1 analog with Arg substituted for Glu at position 3 and a 13-residue N-terminal extension; modifications reduce IGFBP affinity and extend circulating half-life relative to native IGF-1 (full sequence per COA).
SynonymsLong R3 Insulin-like Growth Factor-1
Physical FormLyophilized powder
SolubilitySoluble in bacteriostatic water; consult the product COA for specific solvent recommendations.
StorageStore lyophilized at -20°C; protect from light and moisture. Reconstitute with bacteriostatic water; store reconstituted material refrigerated and use per laboratory procedure.
Answers

Frequently Asked Questions

Is IGF-1 LR3 third-party tested?

Yes. Every lot is independently third-party tested for identity and purity — ≥99% by HPLC and mass spectrometry — with a lot-matched Certificate of Analysis available on request for every lot.

Can I see the Certificate of Analysis before buying?

Yes. Ask us for the lot-matched COA before you order and we will send it, documenting identity, purity, and full analytical results.

What does 'Research Use Only' mean?

This product is supplied strictly for laboratory and research use only (RUO). It is not a drug, food, supplement, or cosmetic, is not approved by the FDA, and is not intended to diagnose, treat, cure, or prevent any disease, or for human or veterinary consumption.

How is it shipped and stored?

Orders placed before 2PM EST typically ship the same business day from our U.S. facility with tracking. Store the lyophilized material at −20°C, protected from light and moisture.

Research Library

Learn more about IGF-1 LR3

IGF-1 LR3 — molecular profile & reference →Reconstitution calculator
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