Research use only
IGF-1 LR3
IGF-1 LR3 price and available sizes below.
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IGF-1 LR3 in a Research Panel: $59.25/vial (reg $79.00)
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Orders ship via FedEx 2Day or FedEx Overnight. Orders placed before 12 PM (noon) ET, Monday–Friday, go out the same day; nothing ships on weekends.
- Preparation form
- Lyophilized powder
- Storage
- Sealed vial, protected from light
- Analytical purity
- >99%
- Intended use
- In vitro research only
IGF-1 LR3 | 1mg
For In Vitro Research Use Only – Not for Human or Veterinary Application
Specifications:
- Quantity: 1 mg
- Form: Lyophilized Powder
- Purity: >99% (HPLC Verified)
Intended Use:
This compound is intended for in vitro research only by qualified professionals. It is not for human or veterinary use, and must not be used in food, drugs, diagnostics, or cosmetics.
Disclaimer:
This compound has not been evaluated by the FDA. All use must follow institutional and regulatory guidelines. All buyers must be authorized research personnel or institutions.
Terms of Sale:
By purchasing from LOOM Peptides, the buyer affirms they are a qualified researcher or institution conducting lawful scientific research. All sales are final. The purchaser assumes full responsibility for handling, use, and regulatory compliance. LOOM Peptides and its affiliates are not liable for any misuse or mishandling of this material.
Over 99% pure peptides
Every peptide is analysed by an independent laboratory and documented on a certificate of analysis for that batch.
Shipped from the USA
Stocked, handled and fulfilled domestically. Orders placed before 12 PM (noon) ET, Monday–Friday, go out the same day.
You can buy IGF-1 LR3 from LOOM Peptides, which stocks it in a single 1 mg lyophilized vial and ships from the USA. Everything LOOM supplies is for in vitro laboratory research — not for human or veterinary use.
IGF-1 LR3 is an 83-amino-acid analogue of IGF-1. It differs from native IGF-1 by an arginine substitution at position 3 and a 13-residue extension on the N-terminus, which is what the 'LR3' designation records.
It is supplied at 1 mg because that is the working mass for a recombinant protein of this size. At approximately 9,110 daltons it is the heaviest molecule in the catalogue, and this is the only single-milligram format LOOM stocks.
IGF-1 LR3 from LOOM Peptides is independently tested by an accredited third-party laboratory for purity and identity. Certificates of Analysis are published on the product page as testing is completed — review the report before you order. A certificate records the identity, purity and quantity measured for the material supplied, so you can confirm what you received matches what was ordered.
Please refer to your facility's standard operating procedures.
Common
questions
Purity verification, documentation, and how orders reach your laboratory.
About IGF-1 LR3
What is IGF-1 LR3?
IGF-1 LR3 (Long R3 IGF-1) is a recombinant 83-amino-acid analogue of IGF-1 — the full 70-residue IGF-1 sequence with arginine substituted for glutamate at position 3 and a 13-residue N-terminal extension — supplied by LOOM Peptides as a lyophilized powder for in vitro laboratory use. It is produced recombinantly and folds with three disulfide bonds.
How does IGF-1 LR3 work?
In vitro, the Arg3 substitution reduces binding to the IGF-binding proteins present in protein-supplemented assay media, so the LR3 form is preferred over native IGF-1 in cell-culture assay work; activity is measured at the IGF-1 receptor in receptor-expressing cell lines.
How LOOM tests IGF-1 LR3
Recombinant expression, refolding, chromatographic purification, lyophilization. Independent analysis by HPLC for purity and identity (retention time against a reference standard); certificate at /coa/igf-1-lr3-1mg-hz-1008-igf1-01-coa.webp.
IGF-1 LR3 for sale: sizes and format
IGF-1 LR3 is for sale from LOOM Peptides in 1 mg sealed glass vials of lyophilized powder. Sealed lyophilized vials are stable at ambient temperature in transit and ship at ambient temperature; same-day dispatch before 12 PM (noon) ET, Monday–Friday, via FedEx from the USA.
Research use only
IGF-1 LR3 from LOOM Peptides is supplied strictly for in vitro laboratory research by qualified researchers and organizations. It is not for human or veterinary use and is not a drug, food, supplement or cosmetic. Checkout requires an institutional email matching the stated organization, and purchasers must be 21 or older. All sales are final.
IGF-1 LR3 specifications
- Purity
- >99% by HPLC; identity by HPLC retention time against a reference standard
- CAS number
- 946870-92-4
- Molecular mass
- 9117.5 Da
- Amino acid count
- 83
- Structure
- 3 disulfide bonds; Recombinant
- Synonyms
- Long R3 IGF-1, LR3-IGF-I
- Physical form
- White lyophilized powder
Identity confirmed by HPLC retention time on the current lot.
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Terms of sale
Note: our products are not intended to treat, prevent, mitigate or cure any disease or medical condition, and are supplied for laboratory research purposes only. Purchasers must be at least 21 years of age and qualified to handle research materials.