1. Product Overview
Selank is a synthetic heptapeptide, a structurally optimized derivative of the natural immunomodulatory peptide Tuftsin. It is manufactured via solid-phase peptide synthesis and purified by high-performance liquid chromatography. Supplied as white to off-white loose lyophilized powder, it features excellent water solubility, stable chemical properties and consistent quality across batches.
This product is a research-grade peptide raw material for in vitro scientific research only. It is neither medicine nor dietary supplement, and contains no stimulants or prohibited ingredients. It shall not be used for in vivo application on humans or animals, nor for non-research scenarios, and is only supplied to qualified researchers and laboratories.
2. Key Features
- Stable Structure & Good Solubility: The heptapeptide has a stable structure and is storage-stable in lyophilized form. It dissolves rapidly in aqueous solvents to form clear solutions, compatible with various in vitro experimental systems.
- High Purity & Low Impurities: Multiple purification processes ensure single impurity ≤0.1% and total impurity ≤0.5%, reducing experimental interference and ensuring accurate, reproducible data。
- Clear Targeting: As a Tuftsin analog, it targets neurotransmitter pathways (GABA, serotonin, dopamine) and immunomodulatory pathways, serving as a core tool peptide for neuroimmunology research。
- Compliant & Safe: Free of stimulants and restricted substances, with no in vivo activity risks. Intended for in vitro research only, complying with cross-border trade and platform regulations.
3. Research Applications (In Vitro Use Only)
- Neurotransmitter Regulation Research: In vitro mechanism studies on GABAergic, serotonergic and dopaminergic signaling pathways, supporting research on neuromodulation and emotional regulation。
- Immunomodulation Mechanism Research: Basic experiments on immune cell activation, cytokine expression regulation and neuro-immune interactions。
- Cell Function Experiments: In vitro studies on cell activity, proliferation, apoptosis and signal transduction.
- Research Model Development: A standardized research raw material for universities, research institutions and biotech enterprises, supporting projects in neuroscience, immunology, molecular biology and other fields.
4. Compliance Statement
- This product is a raw material dedicated to in vitro laboratory research. It shall be handled only by qualified professional researchers in standard laboratory environments.
- Prohibited for medical diagnosis, physical conditioning, clinical treatment and other medical purposes, as well as any in vivo use on humans and animals.
- This product contains no stimulants or prohibited components. Users shall abide by local import and export laws and laboratory safety regulations.
- Users shall take full responsibility for all risks and liabilities arising from improper use and operation.
| Items | Specifications |
| CAS No | 129954-34-3 |
| Product Name | Selank |
| 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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1. Pre-operation Preparation
This product is exclusively for in vitro scientific research and shall be handled only by professional researchers. Clean the working area in advance and keep it clean, dry and well ventilated to prevent cross-contamination. Prepare experimental containers, liquid handling tools, solvents and protective equipment. All utensils must be cleaned, sterilized and cooled before use.
Wear lab coat, gloves and goggles during operation to avoid direct contact of powder and solution with skin, eyes and respiratory tract. Check the package before use to ensure good sealing and normal material condition.
2. Powder Dissolution
Use purified water or buffer solution according to experimental protocols. Add solvent slowly into the container, then add the sample and stir or swirl gently until fully dissolved. For high-precision experiments, filter the solution with sterile membrane to remove fine impurities.
3. Dilution and Application
To prepare solutions of different concentrations, perform serial dilution with blank solvent and mix thoroughly after each step. Add appropriate amount of solution into reaction vessels, cell culture systems and other carriers. Conduct experiments strictly in accordance with preset parameters and record all data completely.
4. Post-operation Handling
Seal the original vial tightly immediately after use and store it as required. Clean, sterilize and store all used utensils following standard laboratory procedures.
Collect waste liquid, residues and used supplies separately. Dispose of them in compliance with local waste management regulations. Random dumping is prohibited.
5. Notes
- Aqueous solution has poor stability. Prepare and use it immediately to prevent component degradation.
- The product is highly hygroscopic and light-sensitive. Use it up promptly after opening and avoid repeated opening.
- Handle gently during operation and transportation to prevent package damage, leakage and moisture deterioration.
- This product is only for in vitro scientific research. Do not alter its intended use.
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1. General Storage Requirements
This lyophilized peptide powder is highly hygroscopic and sensitive to temperature and light. Store it in a cool, dry, dark and well-ventilated separate area, away from heat sources, strong light and electrical devices. Keep it apart from corrosive and volatile chemicals to avoid cross-contamination and deterioration.
2. Storage for Unopened Products
Short-term storage: Keep fully sealed and refrigerate at 2℃~8℃.
Long-term storage: Seal tightly and store at -20℃ away from light.
Keep products away from ground moisture. Do not place heavy items on the packages to prevent damage. Follow the first-in, first-out rule. The shelf life of unopened products is 24 months under standard conditions.
3. Storage for Opened Products
Reseal the package immediately after use to block air and moisture. Store at 2℃~8℃ in dry and dark conditions. Avoid frequent opening and use the product as soon as possible.
4. Storage for Prepared Solution
The solution is much less stable than solid powder. Prepare and use it right away. For temporary storage, transfer to a clean sealed container and refrigerate at 2℃~8℃ for no more than 24 hours.
Do not store at room temperature for a long time or perform repeated freeze-thaw cycles, which will cause component degradation. Discontinue use and dispose of the solution properly if turbidity or precipitate appears.
5. Management of Divided Samples
Store divided samples in airtight containers with desiccant in dark places. Mark product name, subpackaging date and batch number on containers for management and traceability.
6. Daily Notes
Check storage facilities, packages and materials regularly. Isolate damaged, damp, caked or discolored materials in a timely manner. Use dehumidifiers in humid environments. Handle products gently during transportation to prevent seal damage caused by impact.
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
Selank is a synthetic derivative of the tetrapeptide tuftsin that contains a proline-glycine-proline sequence at the C-terminus and has anxiolytic and anti-inflammatory activities. It increases the amplitude and discharge rate of inhibitory postsynaptic currents of neurons in the rat hippocampal CA1 region when used at a concentration of 1 μM. It decreases the level of affective responses and the number of erroneous escape attempts in rats in an acute stress situation, increases orientational-investigative responses of rats in an unfamiliar situation, and reduces the time mice spend immobile in the forced swim test. It increases locomotor activity of high-anxiety Balb/c, but not C57Bl/6, mice in the open field test. Selank (0.01 mg/kg) decreases verticalization induced by apomorphine in mice. It also decreases expression of the inflammation-related genesIl2rgandXcr1in mouse spleen after 90 minutes when administered at a dose of 100 μg/kg.
SELANK Synthetic is a single, non-glycosylated polypeptide chain containing 7 amino acids, having a molecular mass of 751.89 Dalton and a Molecular formula of C33H57N11O9.
Research & Reference Note
Research Grade Selank Peptide Powder, High Purity Biochemical Material, Reagent for In Vitro Laboratory Research 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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