⚠️ FOR RESEARCH USE ONLY — This compound is not FDA approved. Not for human or veterinary use. All data is from published literature for educational reference.

Long-Acting IGF-1 Analog

IGF-1 LR3

CAS 946870-92-4IGF-1R≥99% HPLC

$69.99

IGF-1 LR3, a Long-Arg3 analog of insulin-like growth factor 1 with extended half-life, studied in research for cell growth, proliferation, and anabolic signaling. Lyophilized, research-grade, ≥99% HPLC purity.

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1 Bottle

Standard

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.

ILS ILS Laboratories

Certificate of Analysis

≥99%

Purity by HPLC

Parameter	Result	Method	Specification
Appearance	Good	Visual	Meets spec
Purity	≥99% · Pass	HPLC	≥ 98%
Net Peptide Content	1 mg	HPLC	Report
Identity	Confirmed	HPLC / MS	Meets spec
Fentanyl Screen	Not Detected	Immunoassay	Pass
Heavy Metals	Not Detected	ICP-MS	Pass
Sterility	No Growth	PCR	Pass
Endotoxin	< 0.05 EU/mL	USP	Reported

Third-Party Verified

Certificate of Analysis

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

1mg

Lot IG-0141

✓99.73%

HPLC purity · meets spec

Labeled: 1mg
Measured: 1.03mg
Identity: Confirmed
Heavy metals: Not Detected
Tested: Jul 14, 2026

Certificate available on request

1mg

Lot IG-0127

✓99.81%

HPLC purity · meets spec

Labeled: 1mg
Measured: 1.04mg
Identity: Confirmed
Heavy metals: Not Detected
Tested: Jun 22, 2026

Certificate available on request

1mg

Lot IG-0113

✓99.59%

HPLC purity · meets spec

Labeled: 1mg
Measured: 1.02mg
Identity: Confirmed
Heavy metals: Not Detected
Tested: Jun 04, 2026

Certificate available on request

1mg

Lot IG-0099

✓99.68%

HPLC purity · meets spec

Labeled: 1mg
Measured: 1.03mg
Identity: Confirmed
Heavy metals: Not Detected
Tested: May 12, 2026

Certificate available on request

Frequently Researched Together

Related research compounds

Compound Information

Technical specifications

🧬 Molecular Profile

What is IGF-1 LR3?

Type: Recombinant protein analog
CAS number: 946870-92-4
Molecular formula: C400H625N111O115S9
Molecular weight: 9111.42 g/mol
Amino acids: 83

❄️ Storage Requirements

Stability Information

🧊

Lyophilized (powder)

≤ −20 °C · 24+ months

💧

Reconstituted

2–8 °C · ~14 days

Reconstitute with 1 mL 0.1 M acetic acid buffer (or bacteriostatic water).

Sources & References

Peer-reviewed research

ENDOCRINE REVIEWS

Insulin-like growth factor-I - physiology and biological actions

2007, Clemmons DR

View source →

GROWTH HORMONE & IGF RESEARCH

Long R3 IGF-I - an enhanced-potency analogue

2010, Tomas FM et al.

View source →

JOURNAL OF ENDOCRINOLOGY

IGF-1 signalling in skeletal muscle growth

2015, Yoshida T et al.

View source →

PUBCHEM DATABASE

IGF-1 LR3 - compound summary

Reference data

View source →

⚠️ Important Research Notice

Not for human consumption. This product is sold exclusively for in-vitro laboratory 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.

IGF-1 LR3

Every batch, independently verified.

Certificate of Analysis

Frequently Researched Together

CJC-1295/Ipamorelin

BPC-157

BPC-157/TB-500

NAD+

MOTS-C

GLUTATHIONE

Compound Information

What is IGF-1 LR3?

Stability Information

Sources & References

IGF-1 LR3

Every batch, independently verified.

Certificate of Analysis

Frequently Researched Together

Compound Information

What is IGF-1 LR3?

Stability Information

Sources & References

Related products