Product Introduction
IGF-1 LR3 is artificially modified recombinant peptide with optimized amino acid sequence including terminal extension and specific amino acid substitution. It displays better physical and chemical stability under in-vitro liquid environment compared with natural counterpart. Synthesized under standardized biological production process with low impurity content and consistent batch parameters, widely adopted as lab biochemical raw material.
Application Scope (RUO Only)
⚠️ For research purpose solely, not medicine, food supplement or cosmetic material, forbidden for all human-related application
- In-vitro cell cultivation research: applied in myoblast, chondrocyte and isolated tumor cell culture to study cell proliferation, differentiation and apoptosis mechanism;
- Biochemical metabolism research: raw material for in-vitro experiment about glucose metabolism and receptor binding study;
- Preclinical new drug development: target screening and bio-intermediate research for novel medicine development;
- Histology research: lab material for skeletal cell growth and isolated tissue cultivation projects.
Specification & Package
Standard packing: 1mg per vial,5mg per vial; 10 vials per carton, unlabeled neutral vial packaging, customized packing available on clients’ demand.
Storage
Long-term sealed storage: -20℃~-80℃, keep away from light;
After dissolution with solvent, preserve solution at 2℃~8℃, avoid repeated freezing and thawing to prevent activity loss.
Quality Documents
Each batch is attached with COA certificate, MSDS safety sheet and HPLC test report; third-party lab inspection is acceptable upon request. Complete certification documents for global customs clearance.
Supply Advantages
Mass production with stable spot inventory; consistent product index among different batches; available for small sample order and bulk laboratory procurement with full set of export certification.
Disclaimer (Highlight)
This product is biochemical raw material only for laboratory scientific research. It is not pharmaceutical substance or dietary supplement and cannot be used for human consumption or personal care. It shall never be used for sports related auxiliary supplies and is not applicable for prohibited doping applications.
| Items | Specifications |
| CAS No | 946870-92-4 |
| Product Name | IGF-1LR3 |
| Appearance | White lyophilized powder |
| Specification | 10 pieces per box |
| Origin | Guangzhou |
| Purity | ≥98% HPLC |
| Storage | Keep sealed, cool, dry and away from light |
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Precondition
All operations are restricted to in-vitro laboratory preparation for research only. Prepared solution shall not be applied on human bodies in any form.
Required Auxiliary Materials
Sterile lab buffer solution such as PBS or lab-grade purified water, purchased separately as common lab consumables.
Dissolving Procedures
- Preparation: Perform all operations inside sterile laminar flow cabinet. Sterilize all tools in advance under room temperature away from strong light.
- Solvent addition: Measure required sterile buffer and add gently along inner bottle wall based on target experimental concentration. Avoid direct flushing toward lyophilized powder.
- Standing dissolution: Seal bottle cap after solvent feeding, leave still for 30~60 minutes at room temperature for natural dissolution. Rotate bottle mildly if tiny undissolved residue exists, no violent shaking.
- Aliquot & preservation: Split homogeneous stock solution into sterile tubes by single-test dosage.
Short-term reserved aliquot: Store at 2~8℃ and consume within 7 days;
Long-term reserved aliquot: Seal and store at -20℃ away from light, prevent repeated freeze-thaw cycles.
Application in Experiment
Dilute finished stock solution following self-made lab experimental formula and pipette quantitative dosage into cell culture medium for in-vitro cell incubation and related mechanism research.
Precautions
- Operations must be finished by qualified lab researchers inside certified laboratory space. Prepared liquid is only available for in-vitro cell and biochemical research tests.
- Unused original lyophilized powder shall be stored at -20℃~-80℃ in sealed and dark environment.
- The prepared liquid is forbidden for food processing, cosmetic manufacturing or other non-research usage.
Disclaimer
This preparation guide is only for in-vitro academic laboratory reference, supplier takes no responsibility for any improper non-research usage.
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1. Unopened original lyophilized powder
- Long term storage: Keep sealed vials away from light and moisture at -20℃ ~ -80℃ to maintain original bioactivity; stay away from high temperature and direct sunlight.
- Temporary short storage: Can be kept at 2~8℃ for a short period only; ambient long-time storage is prohibited to prevent activity degradation.
- Storage condition: Dry, dark warehouse, separate from volatile chemical reagents.
2. Reconstituted experimental solution
- Short-term preservation: Store aliquoted solution at 2~8℃, finish consumption within 7 days.
- Long-term preservation: Seal sub-packed liquid and store at -20℃ in dark place; repeated freeze and thaw must be avoided to prevent polypeptide denaturation.
3. Partially used leftover powder after opening
Seal the bottle tightly immediately after sampling, wrap with sealing film and return to low-temperature storage space to reduce moisture and air infiltration.
4. Warehouse Reminder
This item is lab research raw material only, keep separate from food and cosmetic raw materials during storage. Cold chain is recommended for transit temporary storage; transfer to specified low-temperature condition once goods arrive.
Hong Kong Bosen Peptide R&D Co., Limited
Hong Kong Bosen Peptide R&D Co., Limited is a professional biotechnology company headquartered in Hong Kong, with a focus on peptide research, development, production and global supply. Rooted in the Greater Bay Area’s strong biotech ecosystem, we integrate cutting-edge R&D capabilities, strict quality control systems and efficient global logistics to deliver high-quality peptide products and technical solutions to customers worldwide.
Core Business & Product Portfolio
We specialize in the R&D, customization and commercial production of high-purity peptides, modified peptides and related biotech raw materials. Our product portfolio covers:
- Therapeutic peptides: SS-31 (Elamipretide), Tirzepatide, Semaglutide, Retatrutide (RT20), etc.
- Functional peptides: GHK-Cu, TB500, KPV, NAD, Glutathione, etc.
- Custom peptide services: Custom synthesis of complex sequences, long-chain peptides (up to 200 amino acids) and cyclic peptides, as well as various modification services (N-methylation, unusual amino acid incorporation, etc.).
R&D & Manufacturing Strength
- Technical expertise: Mastery of core technologies including solid-phase peptide synthesis (SPPS), liquid-phase synthesis, advanced purification (HPLC) and strict structural characterization.
- Quality assurance: All products are produced in compliance with cGMP standards, with complete CoA, HPLC and MS reports to ensure batch-to-batch consistency and high purity (≥98%).
- Production capacity: Equipped with professional production bases in Guangzhou, supporting small-batch R&D samples to large-scale commercial production, with stable supply capacity.
Global Market & Service Philosophy
With a customer base spanning the Philippines, the United States, Brazil, Russia, Bangladesh and other regions, we adhere to the service philosophy of "Quality First, Customer Centric". We provide one-stop services including product consultation, customization, technical support and global logistics solutions (door-to-door delivery, customs clearance assistance), committed to becoming a reliable long-term partner for global biotech enterprises, research institutions and health industry clients.
Vision
We are dedicated to advancing peptide technology innovation, expanding the application of peptides in health and medical fields, and contributing to global human health with high-quality products and professional services.
ECHEMI Editorial Reference
Long arginine 3-IGF-1, abbreviated as IGF-1 LR3 or LR3-IGF-1, is a synthetic protein and lengthened analogue of human insulin-like growth factor 1 (IGF-1). It differs from native IGF-1 in that it possesses an arginine instead of a glutamic acid at the third position in its amino acid sequence ("arginine 3"), and also has an additional 13 amino acids at its N-terminus (MFPAMPLLSLFVN) ("long"), for a total of 83 amino acids (relative to the 70 of IGF-1).
Research & Reference Note
High Purity Recombinant Human LR3 IGF-1 Polypeptide Lyophilized Powder for Laboratory Research Use is listed on ECHEMI for industrial / laboratory sourcing. This listing is for industrial and laboratory research use. Product information on ECHEMI is provided for sourcing and specification reference. It is not medical advice, a clinical recommendation, or an approved therapy description. Always verify regulatory status, purity, and intended use with the supplier and applicable authorities before purchase or use.
Disclaimer: This listing is for industrial and laboratory research use. Product information on ECHEMI is provided for sourcing and specification reference. It is not medical advice, a clinical recommendation, or an approved therapy description. Always verify regulatory status, purity, and intended use with the supplier and applicable authorities before purchase or use.
Reviewed by ECHEMI Scientific Review - Platform editorial review for research chemicals
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