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IGF-1 LR3

Research Use OnlyLong R3 IGF-1LR3-IGF-1Long Arginine 3-IGF-1CAS: 143045-27-6

An 83-amino acid synthetic analog of human insulin-like growth factor 1 with reduced binding protein affinity and extended half-life, studied for anabolic and tissue growth effects in preclinical research. Premium Research Peptide.

$69.99

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Verified Test Results

Every batch, independently verified.

Each batch is analyzed by an ISO/IEC 17025 accredited third-party laboratory. The report below reflects the identity, purity and full-panel specification data released with this product.

ILSILS Laboratories

Certificate of Analysis

99%

Purity by HPLC

ISO 17025 Accredited8× Tested
ParameterResultSpecification
AppearanceGoodMeets spec
Purity99.03% · Pass≥ 95%
Net Peptide Content1.03mgReport
IdentityConfirmedMeets spec
Fentanyl ScreenNot DetectedPass
Heavy MetalsNot DetectedPass
SterilityNo GrowthPass
Endotoxin0.097 EU/mLReported

Representative report from lot IGF0002 (IGF-1 LR3). Your order ships with its own lot-specific certificate.

View this batch's certificate

Third-party verified

Certificate of Analysis

Every lot is HPLC-tested at an ISO/IEC 17025-accredited lab. Open any batch's certificate below.

IGF-1 LR3 1mg

Latest

LOT IGF0002

99.03%

HPLC purity · meets spec

Labeled
1mg
Measured
1.03mg
Identity
Confirmed
Heavy metals
Not Detected
Sterility
No Growth
Endotoxin
0.097 EU/mL
Tested
Jul 30, 2026

8 assays passed · ISO/IEC 17025 accredited

View certificate

IGF-1 LR3 1mg

LOT IGF0001

99.47%

HPLC purity · meets spec

Labeled
1mg
Measured
1.06mg
Identity
IGF-1 LR3
Heavy metals
Not Detected
Sterility
No Growth
Endotoxin
< 0.05 EU/mL
Tested
Jun 10, 2026

8 assays passed · ISO/IEC 17025 accredited

View certificate

Compound Information

Technical specifications

Molecular Profile

What Is IGF-1 LR3?

TypeSynthetic IGF-1 analog
CAS Number143045-27-6
Molecular Weight9,117.60 g/mol
Amino Acids83
FormulaC400H625N111O115S9
SequenceMFPAMPLSSL FVNGPRTLCG...
PubChem Database
Structural Modifications

How It Differs from Native IGF-1

N-terminal extension+13 amino acids (MFPAMPLLSLFVN)
Position 3 substitutionGlu → Arg
Total length83 vs 70 amino acids
IGFBP affinityDramatically reduced
IGF-1R affinityRetained
Mohan & Baylink, 2002

Important Research Notice

Not for human consumption. This product is sold exclusively for research and educational purposes. It is not intended to diagnose, treat, cure, or prevent any disease.

All clinical trial data and research findings presented on this page are sourced from peer-reviewed journals and official publications. They are provided for educational reference only and should not be interpreted as medical advice or product claims.

By purchasing this product, you confirm that you are a qualified researcher and will use it in accordance with all applicable laws and regulations.

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