Recombinant proteins
IGF-1 LR3
Long R3 insulin-like growth factor-1
- Third-party lab tested
- 99%+ purity on tested lots
- Certificate per size
A recombinant analogue of insulin-like growth factor-1 with an extended N-terminal sequence and an arginine substitution at position 3. Supplied as a lyophilized powder for laboratory research use.
Analytical specification (1 mg)
Bioviridian · 2026-03-03
- Purity
- 99.7%
- Net content
- 1.16 mg (labeled 1 mg)
- Method
- RP-HPLC (214 nm) / LC-MS/MS
- Mol. weight
- ~9117 g/mol
- Lot
- 70-202602-18
Store lyophilized at -20°C, protected from light.
1 × 1 mg: $90.00
- Lab certificates posted per lot
- Ships via USPS with tracking
- Replies within one business day
Specification guarantee. If what you receive does not match the specification on this page, we replace it or refund it. Terms
Research use only
This product is supplied strictly for laboratory research use. It is not a drug, food, cosmetic, or dietary supplement, and is not for human or veterinary consumption. Beyond Peptides provides no dosing guidance, protocols, or medical advice.
Adding to cart does not charge you. After you submit your order, you pay by Venmo, Zelle or Cash App from the confirmation page, then it ships via USPS.
About IGF-1 LR3
IGF-1 LR3 (Long R3 insulin-like growth factor-1) is a recombinant analogue of the 70-amino-acid IGF-1 protein. It carries an arginine in place of glutamic acid at position 3 and a 13-amino-acid extension at the N-terminus, giving a single-chain protein of 83 residues and approximately 9117 g/mol.
It is supplied as a lyophilized powder in 1 mg vials. Store it lyophilized at -20°C, protected from light. A certificate of analysis is posted for each size as its lot is tested, and the size table on this page shows which sizes have one. It is sold for laboratory research use only and is not for human or veterinary use.
IGF-1 LR3 sizes and specifications
IGF-1 LR3 is supplied as 1 mg for laboratory research use only.
| Size | Price | Availability | Purity and method | Lot | Certificate |
|---|---|---|---|---|---|
| 1 mg1.16 mg (labeled 1 mg) | $90.00 | In stock | 99.7%RP-HPLC (214 nm) / LC-MS/MS | 70-202602-18 | View certificateBioviridian, 2026-03-03 |
Identification and handling
- Molecular weight
- ~9117 g/mol
- Storage
- Store lyophilized at -20°C, protected from light.
Ordering and documentation
- You pay by Venmo, Zelle or Cash App after submitting your order, and it ships via USPS. Shipping and payment
- How purity is measured and what a certificate of analysis shows: Testing and COAs
- Approved wholesale accounts get wholesale pricing on 10 or more bottles of one size. Wholesale
- Common questions about ordering, payment and shipping: FAQ
IGF-1 LR3 questions
What is IGF-1 LR3?
IGF-1 LR3 (Long R3 insulin-like growth factor-1) is listed under recombinant proteins and supplied as 1 mg for laboratory research use only. A recombinant analogue of insulin-like growth factor-1 with an extended N-terminal sequence and an arginine substitution at position 3. Supplied as a lyophilized powder for laboratory research use. It is not for human or veterinary consumption.
Is there a certificate of analysis for IGF-1 LR3?
Yes, for 1 mg (99.7%, Bioviridian). Each certificate is linked on this page for its own size and lot.
What form is IGF-1 LR3 supplied in?
IGF-1 LR3 is supplied as a lyophilized (freeze-dried) powder in a sealed vial. Each size states its measured net content where its lot has been tested.
How should IGF-1 LR3 be stored?
Store lyophilized at -20°C, protected from light.
How does ordering and shipping work?
Add IGF-1 LR3 to your cart and submit your order; nothing is charged online. Your confirmation page shows your total, which you pay by Venmo, Zelle or Cash App. Once payment is matched to your order it ships via USPS with tracking, to addresses in the United States only.
Who can buy IGF-1 LR3?
Adults 21 or older buying for lawful laboratory research. Every order carries the research-use, age and terms acknowledgments at checkout, and ships only to addresses in the United States.
Can I return IGF-1 LR3?
Because these are research materials, we cannot accept returns once an order has shipped. If a product does not match the specification stated on its product page, contact us immediately and we will replace it or refund it.
