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IGF1-LR3

IGF1-LR3

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Certificate of analysis for IGF1-LR3, opens in a new tab

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Lab testedIndependent US lab
99.56%HPLC verified
2 Day ShippingFrom the USA, tracked
PassedSterility & endotoxin
PassedIdentity & purity, 99.56%
Free shipment protectionLost, stolen, or damaged? We replace it, on us.

About IGF1-LR3

IGF-1 LR3 is a synthetic, chemically modified analogue of the naturally occurring Insulin-like Growth Factor-1 (IGF-1). The "LR3" designation refers to the replacement of Glu with Arg at the 3rd position and a 13-amino acid extension at the N-terminus. This structural change significantly lowers its affinity for IGF-binding proteins (IGFBPs), leading to a much longer half-life (approx. 20–30 hours) compared to standard IGF-1.

Molecular formulaC₄₀₀H₆₂₅N₁₁₁O₁₁₅S₉

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Verified test results

Every lot, independently tested.

This lot of IGF1-LR3 was analysed by Freedom Diagnostics, an independent third-party laboratory, before it shipped. The figures below are the released report, exactly as the lab signed it.

Freedom DiagnosticsIndependent third-party laboratory

Certificate of analysis

99.56%

Purity by HPLC-UV

Lot
RL-IG1-0826
Tested
Sep 2, 2026
Labeled
1mg
Measured
1.48 mg

Owned and operated in the USA7 assays

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Full QC panel4 passed · 3 reported
  • PurityHPLC-UV99.56%Reported
  • IdentityLC-MSIGF-LR3Pass
  • Net contentMeasured against the label1.48 mgReported
  • AppearanceVisualWhite lyophilized powderReported
  • EndotoxinLAL, USP <85>PassPass
  • MicrobialPCRPassPass
  • Fentanyl screenImmunoassayNo fentanyl detectedPass

Purity by HPLC-UV, identity by LC-MS, endotoxin by LAL to USP <85>, microbial by PCR. Reported Sep 2, 2026, received Aug 31, 2026.

Every lot on record

Open any lot's signed certificate. Your order ships with the report for the lot you receive.

IGF-1R3 1mgLatest

Lot RL-IG1-0826

99.56%HPLC-UV purity

Labeled
1mg
Measured
1.48 mg
Identity
IGF-LR3
Appearance
White lyophilized powder
Endotoxin
Pass
Microbial
Pass
Fentanyl
No fentanyl detected
Tested
Sep 2, 2026

7 assays on this certificate

View certificate

All products are sold for laboratory, in vitro research use only. Not for human or veterinary use, and not for use in food, drugs, cosmetics or medical devices.